(4x-7)(x+2)=0

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Solution for (4x-7)(x+2)=0 equation:


Simplifying
(4x + -7)(x + 2) = 0

Reorder the terms:
(-7 + 4x)(x + 2) = 0

Reorder the terms:
(-7 + 4x)(2 + x) = 0

Multiply (-7 + 4x) * (2 + x)
(-7(2 + x) + 4x * (2 + x)) = 0
((2 * -7 + x * -7) + 4x * (2 + x)) = 0
((-14 + -7x) + 4x * (2 + x)) = 0
(-14 + -7x + (2 * 4x + x * 4x)) = 0
(-14 + -7x + (8x + 4x2)) = 0

Combine like terms: -7x + 8x = 1x
(-14 + 1x + 4x2) = 0

Solving
-14 + 1x + 4x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-2 + -1x)(7 + -4x) = 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 '(7 + -4x)' equal to zero and attempt to solve: Simplifying 7 + -4x = 0 Solving 7 + -4x = 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 + -4x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -4x = 0 + -7 -4x = 0 + -7 Combine like terms: 0 + -7 = -7 -4x = -7 Divide each side by '-4'. x = 1.75 Simplifying x = 1.75

Solution

x = {-2, 1.75}

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