Question

add the polynomial.

please give the answer in camera.​

Answer 1

Answer:

The sum of the polynomials is $-x^3+9x^2+13x+2$ .

Step-by-step explanation:

Given the polynomials,

$P(x)= 4x^2-9x^3+5+6x$

and

$Q(x)= -3+8x^3+7x+5x^2$

We need to add these polynomials. When we add the terms, we should add the like terms. That is, the constant terms, the term containing $x$, the term containing $x^2$ and the terms containing $x^3$ have to add separately.

Thus we have

$P(x)+Q(x)=4x^2-9x^3+5+6x+(-3)+8x^3+7x+5x^2\\\\=-9x^3+8x^3+4x^2+5x^2+6x+7x+5-3\\\\=-x^3+9x^2+13x+2$