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3/2+b(b+45)(2b-90)+90=540
We move all terms to the left:
3/2+b(b+45)(2b-90)+90-(540)=0
determiningTheFunctionDomain b(b+45)(2b-90)+90-540+3/2=0
We add all the numbers together, and all the variables
b(b+45)(2b-90)-450+3/2=0
We multiply parentheses ..
b(+2b^2-90b+90b-4050)-450+3/2=0
We multiply all the terms by the denominator
(b(+2b^2-90b+90b-4050))*2+3-450*2=0
We add all the numbers together, and all the variables
(b(+2b^2-90b+90b-4050))*2-897=0
We move all terms containing b to the left, all other terms to the right
(b(+2b^2-90b+90b-4050))*2=897
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