(2x+7)(x^2-x-20)=0

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Solution for (2x+7)(x^2-x-20)=0 equation: 


Simplifying
(2x + 7)(x2 + -1x + -20) = 0

Reorder the terms:
(7 + 2x)(x2 + -1x + -20) = 0

Reorder the terms:
(7 + 2x)(-20 + -1x + x2) = 0

Multiply (7 + 2x) * (-20 + -1x + x2)
(7(-20 + -1x + x2) + 2x * (-20 + -1x + x2)) = 0
((-20 * 7 + -1x * 7 + x2 * 7) + 2x * (-20 + -1x + x2)) = 0
((-140 + -7x + 7x2) + 2x * (-20 + -1x + x2)) = 0
(-140 + -7x + 7x2 + (-20 * 2x + -1x * 2x + x2 * 2x)) = 0
(-140 + -7x + 7x2 + (-40x + -2x2 + 2x3)) = 0

Reorder the terms:
(-140 + -7x + -40x + 7x2 + -2x2 + 2x3) = 0

Combine like terms: -7x + -40x = -47x
(-140 + -47x + 7x2 + -2x2 + 2x3) = 0

Combine like terms: 7x2 + -2x2 = 5x2
(-140 + -47x + 5x2 + 2x3) = 0

Solving
-140 + -47x + 5x2 + 2x3 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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