1.5=x(1+2)^2-3

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Solution for 1.5=x(1+2)^2-3 equation: 



1.5=x(1+2)^2-3

We move all terms to the left:

1.5-(x(1+2)^2-3)=0

We add all the numbers together, and all the variables

-(x3^2-3)+1.5=0

We get rid of parentheses

-x3^2+3+1.5=0

We add all the numbers together, and all the variables

-x3^2+4.5=0

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

-x3^2=-4.5

x=-4.5/1

x=-4.5

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