(12r^2-7r+7)(3r^2+11r-8)=

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Solution for (12r^2-7r+7)(3r^2+11r-8)= equation: 


Simplifying
(12r2 + -7r + 7)(3r2 + 11r + -8) = 0

Reorder the terms:
(7 + -7r + 12r2)(3r2 + 11r + -8) = 0

Reorder the terms:
(7 + -7r + 12r2)(-8 + 11r + 3r2) = 0

Multiply (7 + -7r + 12r2) * (-8 + 11r + 3r2)
(7(-8 + 11r + 3r2) + -7r * (-8 + 11r + 3r2) + 12r2 * (-8 + 11r + 3r2)) = 0
((-8 * 7 + 11r * 7 + 3r2 * 7) + -7r * (-8 + 11r + 3r2) + 12r2 * (-8 + 11r + 3r2)) = 0
((-56 + 77r + 21r2) + -7r * (-8 + 11r + 3r2) + 12r2 * (-8 + 11r + 3r2)) = 0
(-56 + 77r + 21r2 + (-8 * -7r + 11r * -7r + 3r2 * -7r) + 12r2 * (-8 + 11r + 3r2)) = 0
(-56 + 77r + 21r2 + (56r + -77r2 + -21r3) + 12r2 * (-8 + 11r + 3r2)) = 0
(-56 + 77r + 21r2 + 56r + -77r2 + -21r3 + (-8 * 12r2 + 11r * 12r2 + 3r2 * 12r2)) = 0
(-56 + 77r + 21r2 + 56r + -77r2 + -21r3 + (-96r2 + 132r3 + 36r4)) = 0

Reorder the terms:
(-56 + 77r + 56r + 21r2 + -77r2 + -96r2 + -21r3 + 132r3 + 36r4) = 0

Combine like terms: 77r + 56r = 133r
(-56 + 133r + 21r2 + -77r2 + -96r2 + -21r3 + 132r3 + 36r4) = 0

Combine like terms: 21r2 + -77r2 = -56r2
(-56 + 133r + -56r2 + -96r2 + -21r3 + 132r3 + 36r4) = 0

Combine like terms: -56r2 + -96r2 = -152r2
(-56 + 133r + -152r2 + -21r3 + 132r3 + 36r4) = 0

Combine like terms: -21r3 + 132r3 = 111r3
(-56 + 133r + -152r2 + 111r3 + 36r4) = 0

Solving
-56 + 133r + -152r2 + 111r3 + 36r4 = 0

Solving for variable 'r'.

The solution to this equation could not be determined.

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