x(9x+10)=4x^2-7x+12

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Solution for x(9x+10)=4x^2-7x+12 equation:


Simplifying
x(9x + 10) = 4x2 + -7x + 12

Reorder the terms:
x(10 + 9x) = 4x2 + -7x + 12
(10 * x + 9x * x) = 4x2 + -7x + 12
(10x + 9x2) = 4x2 + -7x + 12

Reorder the terms:
10x + 9x2 = 12 + -7x + 4x2

Solving
10x + 9x2 = 12 + -7x + 4x2

Solving for variable 'x'.

Reorder the terms:
-12 + 10x + 7x + 9x2 + -4x2 = 12 + -7x + 4x2 + -12 + 7x + -4x2

Combine like terms: 10x + 7x = 17x
-12 + 17x + 9x2 + -4x2 = 12 + -7x + 4x2 + -12 + 7x + -4x2

Combine like terms: 9x2 + -4x2 = 5x2
-12 + 17x + 5x2 = 12 + -7x + 4x2 + -12 + 7x + -4x2

Reorder the terms:
-12 + 17x + 5x2 = 12 + -12 + -7x + 7x + 4x2 + -4x2

Combine like terms: 12 + -12 = 0
-12 + 17x + 5x2 = 0 + -7x + 7x + 4x2 + -4x2
-12 + 17x + 5x2 = -7x + 7x + 4x2 + -4x2

Combine like terms: -7x + 7x = 0
-12 + 17x + 5x2 = 0 + 4x2 + -4x2
-12 + 17x + 5x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
-12 + 17x + 5x2 = 0

Factor a trinomial.
(-4 + -1x)(3 + -5x) = 0

Subproblem 1

Set the factor '(-4 + -1x)' equal to zero and attempt to solve: Simplifying -4 + -1x = 0 Solving -4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = 0 + 4 -1x = 0 + 4 Combine like terms: 0 + 4 = 4 -1x = 4 Divide each side by '-1'. x = -4 Simplifying x = -4

Subproblem 2

Set the factor '(3 + -5x)' equal to zero and attempt to solve: Simplifying 3 + -5x = 0 Solving 3 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -5x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -5x = 0 + -3 -5x = 0 + -3 Combine like terms: 0 + -3 = -3 -5x = -3 Divide each side by '-5'. x = 0.6 Simplifying x = 0.6

Solution

x = {-4, 0.6}

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