Question

(13x2 + 5x) + 8x2 =

Answer 1

Good evening

(13x² + 5x) + 8x²

First you need to eliminate the parentheses

13x² + 5x + 8x²

Now group the common terms

13x² + 8x² + 5x

21x² + 5x

I hope that's help:)

Answer 2

(13x² + 5x) + 8x²

= (13 + 8)x² + 5x

= 21x² + 5x