Question

add the given polynomials using the horizontal format.

1. $(6x^2 + 3x)$ and $(2x^2 + 6x)$

Explanation:

Step1: Write sum of polynomials

$(6x^2 + 3x) + (2x^2 + 6x)$

Step2: Group like terms

$(6x^2 + 2x^2) + (3x + 6x)$

Step3: Combine like terms

$8x^2 + 9x$

Answer:

$8x^2 + 9x$