(x+x)4=-56

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Solution for (x+x)4=-56 equation:



(x+x)4=-56
We move all terms to the left:
(x+x)4-(-56)=0
We add all the numbers together, and all the variables
(+2x)4-(-56)=0
We add all the numbers together, and all the variables
(+2x)4+56=0
We multiply parentheses
8x+56=0
We move all terms containing x to the left, all other terms to the right
8x=-56
x=-56/8
x=-7

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