(8x-3)(x+7)=

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Solution for (8x-3)(x+7)= equation:


Simplifying
(8x + -3)(x + 7) = 0

Reorder the terms:
(-3 + 8x)(x + 7) = 0

Reorder the terms:
(-3 + 8x)(7 + x) = 0

Multiply (-3 + 8x) * (7 + x)
(-3(7 + x) + 8x * (7 + x)) = 0
((7 * -3 + x * -3) + 8x * (7 + x)) = 0
((-21 + -3x) + 8x * (7 + x)) = 0
(-21 + -3x + (7 * 8x + x * 8x)) = 0
(-21 + -3x + (56x + 8x2)) = 0

Combine like terms: -3x + 56x = 53x
(-21 + 53x + 8x2) = 0

Solving
-21 + 53x + 8x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-7 + -1x)(3 + -8x) = 0

Subproblem 1

Set the factor '(-7 + -1x)' equal to zero and attempt to solve: Simplifying -7 + -1x = 0 Solving -7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -1x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1x = 0 + 7 -1x = 0 + 7 Combine like terms: 0 + 7 = 7 -1x = 7 Divide each side by '-1'. x = -7 Simplifying x = -7

Subproblem 2

Set the factor '(3 + -8x)' equal to zero and attempt to solve: Simplifying 3 + -8x = 0 Solving 3 + -8x = 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 + -8x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -8x = 0 + -3 -8x = 0 + -3 Combine like terms: 0 + -3 = -3 -8x = -3 Divide each side by '-8'. x = 0.375 Simplifying x = 0.375

Solution

x = {-7, 0.375}

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