(r^2-2r-3)(2r^2-r+1)=

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Solution for (r^2-2r-3)(2r^2-r+1)= equation: 


Simplifying
(r2 + -2r + -3)(2r2 + -1r + 1) = 0

Reorder the terms:
(-3 + -2r + r2)(2r2 + -1r + 1) = 0

Reorder the terms:
(-3 + -2r + r2)(1 + -1r + 2r2) = 0

Multiply (-3 + -2r + r2) * (1 + -1r + 2r2)
(-3(1 + -1r + 2r2) + -2r * (1 + -1r + 2r2) + r2(1 + -1r + 2r2)) = 0
((1 * -3 + -1r * -3 + 2r2 * -3) + -2r * (1 + -1r + 2r2) + r2(1 + -1r + 2r2)) = 0
((-3 + 3r + -6r2) + -2r * (1 + -1r + 2r2) + r2(1 + -1r + 2r2)) = 0
(-3 + 3r + -6r2 + (1 * -2r + -1r * -2r + 2r2 * -2r) + r2(1 + -1r + 2r2)) = 0
(-3 + 3r + -6r2 + (-2r + 2r2 + -4r3) + r2(1 + -1r + 2r2)) = 0
(-3 + 3r + -6r2 + -2r + 2r2 + -4r3 + (1 * r2 + -1r * r2 + 2r2 * r2)) = 0
(-3 + 3r + -6r2 + -2r + 2r2 + -4r3 + (1r2 + -1r3 + 2r4)) = 0

Reorder the terms:
(-3 + 3r + -2r + -6r2 + 2r2 + 1r2 + -4r3 + -1r3 + 2r4) = 0

Combine like terms: 3r + -2r = 1r
(-3 + 1r + -6r2 + 2r2 + 1r2 + -4r3 + -1r3 + 2r4) = 0

Combine like terms: -6r2 + 2r2 = -4r2
(-3 + 1r + -4r2 + 1r2 + -4r3 + -1r3 + 2r4) = 0

Combine like terms: -4r2 + 1r2 = -3r2
(-3 + 1r + -3r2 + -4r3 + -1r3 + 2r4) = 0

Combine like terms: -4r3 + -1r3 = -5r3
(-3 + 1r + -3r2 + -5r3 + 2r4) = 0

Solving
-3 + 1r + -3r2 + -5r3 + 2r4 = 0

Solving for variable 'r'.

The solution to this equation could not be determined.

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