Question

Subtract 7b(2a2+5a-7) from (7a2-a+3 )-3b(6a2-b+3)

Answer 1

Step-by-step explanation:

Subtract :

7b(2a² + 5a - 7) from (7a² - a + 3 ) - 3b(6a² - b + 3)

= (7a² - a + 3 ) - 3b(6a² - b + 3) - 7b(2a² + 5a - 7)

= 7a² - a + 3 - 18a²b + 3b² - 9b - 14a²b - 35ab -

49b

= 7a² - 18a²b - 14a²b - a - 35ab + 3b² - 49b - 9b + 3

= 7a² - 32a²b - a - 35ab + 3b² - 58b + 3