How do you do 3X squared plus 18 plus 9?

1 Answer

Answer :

The given expression can be simplified to: 3X squared +27

Related questions

Description : What is the solution set of the equation x squared plus 3x - 46?

Last Answer : 49

Description : What are the points of intersection between the line 3x -y equals 5 and the curve 2x squared plus y squared equals 129?

Last Answer : If: 3x-y = 5 then y^2 = (3x_5)^2 => 9x^2 -30x+25If: 2x^2 + y^2 = 129 then y^2 = 129-2x^2So: 9x^2 -30x+25 = 129-2x^2Transposing terms: 11x^2 -30x -104 = 0Factorizing the above: (11x- ... x = 52/11 or x= -2By substituting x into the original equation intersections areat: (52/11, 101/11) and (-2, -11)

Description : What are the values of x y and k when the line y equals 3x plus 1 is a tangent to the circle x squared plus y squared equals k?

Last Answer : If y = 3x + 1 is a tangent to x² + y² = k (k > 0 since it isa square), then where they meet has a repeated root; they meetat:x² + (3x + 1)² = k→ x² + 9x² + 6x + 1 - k = 0→ 10x² + 6x + (1 - k) = 0This is the ... 3/10→ y = 3 -3/10 + 1 = 9/10 + 1 = 1/10→ point of contact is (-3/10, 1/10) with k = 1/10

Description : What is x squared minus 3x minus 40?

Last Answer : It is: (x+5)(x-8) when factored

Description : What are the points of contact between the line x -2y equals 1 and the curve 4y squared -3x squared equals 1?

Last Answer : If: x-2y = 1 Then: x^2 = 4y^2 +4y+1 If: 4y^2 -3x^2 = 1 Then: 4y^2 -3(4y^2 +4y+1) = 1 Removing brackets: 4y^2 -12y^2 -12y -3 = 1 Transposing terms: -8y^2 -12y -4 = 0 Dividing all ... meaning y = -1/2 or -1 By substitution into original linear equation points of contact are at: (0, -1/2) and (-1, -1)

Description : How do you factor x squared - 3x -4?

Last Answer : 7

Description : 9x-3x squared?

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Description : How do you factorize x squared plus 7x?

Last Answer : It is: x(x+7) when factorized

Description : What are the points of intersection of the line 2x plus 5y equals 4 with the curve y squared equals x plus 4?

Last Answer : If: 2x +5y = 4 then 25y^2 = 4x^2 -16x +16If: y^2 = x +4 then 25y^2 = 25x +100So: 4x^2 -16x +16 = 25x +100Transposing terms: 4x^2 -41x -84 = 0Factorizing the above: (4x+7)(x-12) = 0 meaning x = -7/4 or x =12By substitution into original equation points of intersection:(-7/4, 3/2) and (12, -4)

Description : How do ypu factor X squared minus 13x plus 12?

Last Answer : It is x^2 -13x +12 = (x-1)(x-12) when factored

Description : What is the perpendicular bisector equation of the line y equals 5x plus 10 spanning the parabola y equals x squared plus 4?

Last Answer : If: y = 5x +10 and y = x^2 +4Then: x^2 +4 = 5x +10Transposing terms: x^2 -5x -6 = 0Factorizing the above: (x-6)(X+1) = 0 meaning x = 6 or x =-1Therefore by substitution endpoints of the line are ... .5 = -1/5(x-2.25) => 5y= -x+114.75Perpendicular bisector equation in its general form: x+5y-114.75= 0

Description : What is X squared plus x plus x plus one?

Last Answer : It is the same as: x^2 +2x +1 and it is (x+1)(x+1) whenfactored

Description : How do ypu factor X squared minus 13x plus 12?

Last Answer : It is x^2 -13x +12 = (x-1)(x-12) when factored

Description : What is X squared plus x plus x plus one?

Last Answer : It is the same as: x^2 +2x +1 and it is (x+1)(x+1) whenfactored

Description : What is the point of contact when the tangent line y equals x plus c touches the circle x squared plus y squared equals 4?

Last Answer : The line meets the circle when:y = x + c→ x² + y² = 4→ x² + (x + c)² - 4 = 0→ x² + x² +2cx + c² - 4 = 0→ 2x² + 2cx + (c² - 4) = 0If the line is a tangent to the circle, this has a repeatedroot. This occurs ... 2 = 0→ (x + √2)² = 0→ x = -√2→ y = x + 2√2= -√2 + 2√2= √2→ point of contact is (-√2, √2)

Description : How do you graph y equals x squared plus 1?

Last Answer : Select a set of value of x in the range over which you wish todraw the graph. For each point, x, calculate x2+1 and then plot thepoint (x, x2+1) on a coordinate plane. Join these points with asmooth curve.

Description : What is the value of y when y equals 2x plus 1.25 is a tangent to the curve y squared equals 10x?

Last Answer : If the line y = 2x+1.25 is a tangent to the curve y^2 = 10x thenit works out that when x = 5/8 then y = 5/2

Description : How do you re-write x squared plus 5x - 3 in vertex form?

Last Answer : 8

Description : If a cos theta plus b sin theta equals 8 and a sin theta - b cos theta equals 5 show that a squared plus b squared equals 89?

Last Answer : There is a hint to how to solve this in what is required to be shown: a and b are both squared.Ifa cos θ + b sin θ = 8a sin θ - b cos θ = 5then square both sides of each to get:a² cos² θ + 2ab cos ... + sin² θ) + b² (sin² θ + cos² θ) = 89using cos² θ + sin² θ = 1â†' a² + b² = 89

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Description : How do you solve the system of equation by substitution x plus 2y-2 3x plus 4y6?

Last Answer : If you mean x+2y = -2 and 3x+4y = 6 then by solving thesimultaneous equations by substitution x = 10 and y = -6

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