(2r-4)(7r^2-6r-6)=

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Solution for (2r-4)(7r^2-6r-6)= equation:


Simplifying
(2r + -4)(7r2 + -6r + -6) = 0

Reorder the terms:
(-4 + 2r)(7r2 + -6r + -6) = 0

Reorder the terms:
(-4 + 2r)(-6 + -6r + 7r2) = 0

Multiply (-4 + 2r) * (-6 + -6r + 7r2)
(-4(-6 + -6r + 7r2) + 2r * (-6 + -6r + 7r2)) = 0
((-6 * -4 + -6r * -4 + 7r2 * -4) + 2r * (-6 + -6r + 7r2)) = 0
((24 + 24r + -28r2) + 2r * (-6 + -6r + 7r2)) = 0
(24 + 24r + -28r2 + (-6 * 2r + -6r * 2r + 7r2 * 2r)) = 0
(24 + 24r + -28r2 + (-12r + -12r2 + 14r3)) = 0

Reorder the terms:
(24 + 24r + -12r + -28r2 + -12r2 + 14r3) = 0

Combine like terms: 24r + -12r = 12r
(24 + 12r + -28r2 + -12r2 + 14r3) = 0

Combine like terms: -28r2 + -12r2 = -40r2
(24 + 12r + -40r2 + 14r3) = 0

Solving
24 + 12r + -40r2 + 14r3 = 0

Solving for variable 'r'.

Factor out the Greatest Common Factor (GCF), '2'.
2(12 + 6r + -20r2 + 7r3) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(12 + 6r + -20r2 + 7r3)' equal to zero and attempt to solve: Simplifying 12 + 6r + -20r2 + 7r3 = 0 Solving 12 + 6r + -20r2 + 7r3 = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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