-4(5-2n)2n=-90

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Solution for -4(5-2n)2n=-90 equation: 



-4(5-2n)2n=-90

We move all terms to the left:

-4(5-2n)2n-(-90)=0

We add all the numbers together, and all the variables

-4(-2n+5)2n-(-90)=0

We add all the numbers together, and all the variables

-4(-2n+5)2n+90=0

We multiply parentheses

16n^2-40n+90=0

a = 16; b = -40; c = +90;
Δ = b2-4ac
Δ = -402-4·16·90
Δ = -4160
Delta is less than zero, so there is no solution for the equation

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