x(7x+4)=2x^2-5x+2

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Solution for x(7x+4)=2x^2-5x+2 equation:


Simplifying
x(7x + 4) = 2x2 + -5x + 2

Reorder the terms:
x(4 + 7x) = 2x2 + -5x + 2
(4 * x + 7x * x) = 2x2 + -5x + 2
(4x + 7x2) = 2x2 + -5x + 2

Reorder the terms:
4x + 7x2 = 2 + -5x + 2x2

Solving
4x + 7x2 = 2 + -5x + 2x2

Solving for variable 'x'.

Reorder the terms:
-2 + 4x + 5x + 7x2 + -2x2 = 2 + -5x + 2x2 + -2 + 5x + -2x2

Combine like terms: 4x + 5x = 9x
-2 + 9x + 7x2 + -2x2 = 2 + -5x + 2x2 + -2 + 5x + -2x2

Combine like terms: 7x2 + -2x2 = 5x2
-2 + 9x + 5x2 = 2 + -5x + 2x2 + -2 + 5x + -2x2

Reorder the terms:
-2 + 9x + 5x2 = 2 + -2 + -5x + 5x + 2x2 + -2x2

Combine like terms: 2 + -2 = 0
-2 + 9x + 5x2 = 0 + -5x + 5x + 2x2 + -2x2
-2 + 9x + 5x2 = -5x + 5x + 2x2 + -2x2

Combine like terms: -5x + 5x = 0
-2 + 9x + 5x2 = 0 + 2x2 + -2x2
-2 + 9x + 5x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-2 + 9x + 5x2 = 0

Factor a trinomial.
(-2 + -1x)(1 + -5x) = 0

Subproblem 1

Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2

Subproblem 2

Set the factor '(1 + -5x)' equal to zero and attempt to solve: Simplifying 1 + -5x = 0 Solving 1 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -5x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -5x = 0 + -1 -5x = 0 + -1 Combine like terms: 0 + -1 = -1 -5x = -1 Divide each side by '-5'. x = 0.2 Simplifying x = 0.2

Solution

x = {-2, 0.2}

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