Question

substract the sum of 3a²-2a+5 and a²-5a-7from the sum of 5a²-9a+6 and the sum of 2a-a²-1​

Answer 1

Answer:

please mark me as briliant

Step-by-step explanation:

sorry

Answer 2

Answer:

-7

Step-by-step explanation:

3a²-2a+5 + a²-5a-7 = 3a² - 2a + 5

a² - 5a - 7

4a² - 7a - 2 - - - - (A)

5a²-9a+6 + 2a-a²-1 = 5a² - 9a + 6

- a² + 2a - 1

4a² - 7a + 5 - - - - (B)

(A) - (B) = 4a² - 7a - 2

- 4a² +7a - 5

0 + 0 - 7

Answer = - 7