Question

what must be added to x^3 + 2x^2 to get x+4
​

Answer 1

$\bold\red{\underline{\underline{Answer:}}}$

$\bold{-x^{3}-2x^{2}+x+4 \ should \ be \ to \ x^{3}+2x^{2}}$

$\bold{to \ get \ x+4}$

$\bold\green{\underline{\underline{Solution}}}$

$\bold{x^{3}+2x^{2}+(-x^{3}-2x^{2}+x+4)}$

$\bold{=x+4}$

Therefore,

$\bold\purple{-x^{3}-2x^{2}+x+4 \ should \ be \ to \ x^{3}+2x^{2}}$

$\bold\purple{to \ get \ x+4}$