(r-8)(r+5)=product

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Solution for (r-8)(r+5)=product equation:


Simplifying
(r + -8)(r + 5) = product

Reorder the terms:
(-8 + r)(r + 5) = product

Reorder the terms:
(-8 + r)(5 + r) = product

Multiply (-8 + r) * (5 + r)
(-8(5 + r) + r(5 + r)) = product
((5 * -8 + r * -8) + r(5 + r)) = product
((-40 + -8r) + r(5 + r)) = product
(-40 + -8r + (5 * r + r * r)) = product
(-40 + -8r + (5r + r2)) = product

Combine like terms: -8r + 5r = -3r
(-40 + -3r + r2) = product

Solving
-40 + -3r + r2 = cdoprtu

Solving for variable 'r'.

Reorder the terms:
-40 + -1cdoprtu + -3r + r2 = cdoprtu + -1cdoprtu

Combine like terms: cdoprtu + -1cdoprtu = 0
-40 + -1cdoprtu + -3r + r2 = 0

The solution to this equation could not be determined.

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