Question

solve my equation 7) 2x+7x^2–9x+21x^2+5x​

Answer 1

Answer:

simplifying

2x+7x2+-9x+21x3+5x=0

reorder the terms

2x+9x+5x+7x2+21x3 =0

combine like terms

2x+-9x=_7x

-7x+5×+7x2+21x3=0

solving

-2x+7x2+21x3=0

solving from variable

'x'

factor out the greatest common factor

(gcf) ,x

x(-2+7x+21x2)=0