(-4)x(x)=320

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Solution for (-4)x(x)=320 equation: 



(-4)x(x)=320

We move all terms to the left:

(-4)x(x)-(320)=0

We multiply parentheses

-4x-320=0

We move all terms containing x to the left, all other terms to the right

-4x=320

x=320/-4

x=-80

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