7(x-2)(x+5)=-10(x+5)

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Solution for 7(x-2)(x+5)=-10(x+5) equation:


Simplifying
7(x + -2)(x + 5) = -10(x + 5)

Reorder the terms:
7(-2 + x)(x + 5) = -10(x + 5)

Reorder the terms:
7(-2 + x)(5 + x) = -10(x + 5)

Multiply (-2 + x) * (5 + x)
7(-2(5 + x) + x(5 + x)) = -10(x + 5)
7((5 * -2 + x * -2) + x(5 + x)) = -10(x + 5)
7((-10 + -2x) + x(5 + x)) = -10(x + 5)
7(-10 + -2x + (5 * x + x * x)) = -10(x + 5)
7(-10 + -2x + (5x + x2)) = -10(x + 5)

Combine like terms: -2x + 5x = 3x
7(-10 + 3x + x2) = -10(x + 5)
(-10 * 7 + 3x * 7 + x2 * 7) = -10(x + 5)
(-70 + 21x + 7x2) = -10(x + 5)

Reorder the terms:
-70 + 21x + 7x2 = -10(5 + x)
-70 + 21x + 7x2 = (5 * -10 + x * -10)
-70 + 21x + 7x2 = (-50 + -10x)

Solving
-70 + 21x + 7x2 = -50 + -10x

Solving for variable 'x'.

Reorder the terms:
-70 + 50 + 21x + 10x + 7x2 = -50 + -10x + 50 + 10x

Combine like terms: -70 + 50 = -20
-20 + 21x + 10x + 7x2 = -50 + -10x + 50 + 10x

Combine like terms: 21x + 10x = 31x
-20 + 31x + 7x2 = -50 + -10x + 50 + 10x

Reorder the terms:
-20 + 31x + 7x2 = -50 + 50 + -10x + 10x

Combine like terms: -50 + 50 = 0
-20 + 31x + 7x2 = 0 + -10x + 10x
-20 + 31x + 7x2 = -10x + 10x

Combine like terms: -10x + 10x = 0
-20 + 31x + 7x2 = 0

Factor a trinomial.
(-5 + -1x)(4 + -7x) = 0

Subproblem 1

Set the factor '(-5 + -1x)' equal to zero and attempt to solve: Simplifying -5 + -1x = 0 Solving -5 + -1x = 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 + -1x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = 0 + 5 -1x = 0 + 5 Combine like terms: 0 + 5 = 5 -1x = 5 Divide each side by '-1'. x = -5 Simplifying x = -5

Subproblem 2

Set the factor '(4 + -7x)' equal to zero and attempt to solve: Simplifying 4 + -7x = 0 Solving 4 + -7x = 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 + -7x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -7x = 0 + -4 -7x = 0 + -4 Combine like terms: 0 + -4 = -4 -7x = -4 Divide each side by '-7'. x = 0.5714285714 Simplifying x = 0.5714285714

Solution

x = {-5, 0.5714285714}

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