-160=-20b(-2b)

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Solution for -160=-20b(-2b) equation:


Simplifying
-160 = -20b(-2b)

Remove parenthesis around (-2b)
-160 = -20b * -2b

Reorder the terms for easier multiplication:
-160 = -20 * -2b * b

Multiply -20 * -2
-160 = 40b * b

Multiply b * b
-160 = 40b2

Solving
-160 = 40b2

Solving for variable 'b'.

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

Add '-40b2' to each side of the equation.
-160 + -40b2 = 40b2 + -40b2

Combine like terms: 40b2 + -40b2 = 0
-160 + -40b2 = 0

Add '160' to each side of the equation.
-160 + 160 + -40b2 = 0 + 160

Combine like terms: -160 + 160 = 0
0 + -40b2 = 0 + 160
-40b2 = 0 + 160

Combine like terms: 0 + 160 = 160
-40b2 = 160

Divide each side by '-40'.
b2 = -4

Simplifying
b2 = -4

Reorder the terms:
4 + b2 = -4 + 4

Combine like terms: -4 + 4 = 0
4 + b2 = 0

The solution to this equation could not be determined.

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