(-5m+8)(-5m-8)=

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Solution for (-5m+8)(-5m-8)= equation:


Simplifying
(-5m + 8)(-5m + -8) = 0

Reorder the terms:
(8 + -5m)(-5m + -8) = 0

Reorder the terms:
(8 + -5m)(-8 + -5m) = 0

Multiply (8 + -5m) * (-8 + -5m)
(8(-8 + -5m) + -5m * (-8 + -5m)) = 0
((-8 * 8 + -5m * 8) + -5m * (-8 + -5m)) = 0
((-64 + -40m) + -5m * (-8 + -5m)) = 0
(-64 + -40m + (-8 * -5m + -5m * -5m)) = 0
(-64 + -40m + (40m + 25m2)) = 0

Combine like terms: -40m + 40m = 0
(-64 + 0 + 25m2) = 0
(-64 + 25m2) = 0

Solving
-64 + 25m2 = 0

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '64' to each side of the equation.
-64 + 64 + 25m2 = 0 + 64

Combine like terms: -64 + 64 = 0
0 + 25m2 = 0 + 64
25m2 = 0 + 64

Combine like terms: 0 + 64 = 64
25m2 = 64

Divide each side by '25'.
m2 = 2.56

Simplifying
m2 = 2.56

Take the square root of each side:
m = {-1.6, 1.6}

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