Question

Add (4x^2-5) + (5x^2-9x-7)

Answer 1

Answer:

= 4x²-5+5x²-9x-7

= 9x²-9x-12

Answer 2

Answer:

$9 {x}^{2} - 9x - 12$

Step-by-step explanation:

$(4 {x}^{2} - 5) + (5 {x}^{2} - 9x - 7) \\ 4 {x}^{2} - 5 + 5 {x}^{2} - 9x - 7 \\ 9 {x}^{2} - 9x - 12$

Hope it helps you out.....