How do you simplify x2+21x+90x2+17x+66+2x2+17x+212x2+25x+33?
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x^2 +21x+90x^2+2+17x+66+2x^2+17x+ 212x^2+ 25x +33
x^2+2x^2+212x^ +90x^2+25x+21x+17x+
17x +66+33
answer
305x^2+80x+99....
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