Question

Simplify.

Answer 1

Hey there!

$\bold{(3x^2 + 2x + 7x^3)+(10x^2 + 6x + 9)}$

Firstly, combine your like terms

1. $\bold{3x^2,10x^2}$
2. $\bold{2x,6x}$
3. $\bold{7x^3}$
4. $\bold{9}$

• $\bold{7x^3\times(3x^2+10x^2)+(2x+6x)+(9)}$
• $\bold{3x^2+10x^2=13x^3}$
• $2x+6x=8x$
• $\boxed{\boxed{\bold{Answer:A)7x^3+13x^2+8x+9}}}$ $\checkmark$

Good luck on your assignment and enjoy your day!

~$\bold{LoveYourselfFirst:)}$

Answer 2

Answer:

A) 7x^3 + 13x^2 + 8x + 9

Step-by-step explanation:

(3x^2 + 2x + 7x^3) + (10x^2 + 6x + 9)

I like to line them up vertically

7x^3 +3x^2 + 2x

+       (10x^2 + 6x + 9)

-----------------------------------

7x^3 +13x^2 +8x +9