=(7x+5)(2x-3)

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Solution for =(7x+5)(2x-3) equation:


Simplifying
0 = (7x + 5)(2x + -3)

Reorder the terms:
0 = (5 + 7x)(2x + -3)

Reorder the terms:
0 = (5 + 7x)(-3 + 2x)

Multiply (5 + 7x) * (-3 + 2x)
0 = (5(-3 + 2x) + 7x * (-3 + 2x))
0 = ((-3 * 5 + 2x * 5) + 7x * (-3 + 2x))
0 = ((-15 + 10x) + 7x * (-3 + 2x))
0 = (-15 + 10x + (-3 * 7x + 2x * 7x))
0 = (-15 + 10x + (-21x + 14x2))

Combine like terms: 10x + -21x = -11x
0 = (-15 + -11x + 14x2)

Solving
0 = -15 + -11x + 14x2

Solving for variable 'x'.

Combine like terms: 0 + 15 = 15
15 + 11x + -14x2 = -15 + -11x + 14x2 + 15 + 11x + -14x2

Reorder the terms:
15 + 11x + -14x2 = -15 + 15 + -11x + 11x + 14x2 + -14x2

Combine like terms: -15 + 15 = 0
15 + 11x + -14x2 = 0 + -11x + 11x + 14x2 + -14x2
15 + 11x + -14x2 = -11x + 11x + 14x2 + -14x2

Combine like terms: -11x + 11x = 0
15 + 11x + -14x2 = 0 + 14x2 + -14x2
15 + 11x + -14x2 = 14x2 + -14x2

Combine like terms: 14x2 + -14x2 = 0
15 + 11x + -14x2 = 0

Factor a trinomial.
(3 + -2x)(5 + 7x) = 0

Subproblem 1

Set the factor '(3 + -2x)' equal to zero and attempt to solve: Simplifying 3 + -2x = 0 Solving 3 + -2x = 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 + -2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2x = 0 + -3 -2x = 0 + -3 Combine like terms: 0 + -3 = -3 -2x = -3 Divide each side by '-2'. x = 1.5 Simplifying x = 1.5

Subproblem 2

Set the factor '(5 + 7x)' equal to zero and attempt to solve: Simplifying 5 + 7x = 0 Solving 5 + 7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 7x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 7x = 0 + -5 7x = 0 + -5 Combine like terms: 0 + -5 = -5 7x = -5 Divide each side by '7'. x = -0.7142857143 Simplifying x = -0.7142857143

Solution

x = {1.5, -0.7142857143}

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