Question

(12y2 + 17y - 4) + (9y2 - 13y + 3) =

Answer 1

Answer:

$21y^{2} +4y-1$

Step-by-step explanation:

Hello!

$(12y^{2} +17y-4)+(9y^{2} -13y+3)$

For this, we can combine like terms

$12y^{2} +9y^{2}=21y^{2}$

17y - 13y = 4y

-4 + 3 = -1

Combine the answers and we get

$21y^{2} +4y-1$

Hope this Helps!

Answer 2

Answer:

21y² + 4y -1

Step-by-step explanation:

(12y² + 17y - 4) + (9y² - 13y + 3)  ---- remove parentheses

= 12y² + 17y - 4y + 9y² - 13y + 3

= 12y² + 9y² + 17y - 13y - 4 + 3  -----grouped like terms

= 21y² + 17y - 13y - 4 + 3

= 21y² + 4y - 4 + 3

= 21y² + 4y - 1