Question

Find the sum of these polynomials.(x²-x+ 8) + (10x² + 7) =A. 11x²-x+1B. 10x²-x+1 c. 11x²-x+15D. 10x²-x+ 15

Answer 1

$c)\text{ }11x^2-x+15$Explanation

Step 1

given

$(x^2-x+8)+(10x^2+7)$

a): Group the like terms. Like terms are terms whose variables and exponents are the same

so

$\begin{gathered} (x^2-x+8)+(10x^2+7) \\ x^2-x+8+10x^2+7 \\ (x^2+10x^2)+(-x)+(8+7) \end{gathered}$

b)Simplify by combining like terms.

$\begin{gathered} (x^{2}+10x^{2})+(-x)+(8+7) \\ 11x^2-x+15 \end{gathered}$

therefore, the answer is

$c)\text{ }11x^2-x+15$

I hope this helps you