Solve my equation 7) 2x+7x^2–9x+21x^2+5x – InterviewSolution

1.	Solve my equation 7) 2x+7x^2–9x+21x^2+5x
Answer» SIMPLIFYING 2x+7x2+-9x+21x3+5x=0reorder the terms 2x+9x+5x+7x2+21x3 =0combine like terms2x+-9x=_7x-7x+5×+7x2+21x3=0 SOLVING -2x+7x2+21x3=0solving from variable'x'factor out the greatest common factor (GCF) ,x x(-2+7x+21x2)=0

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