Find the sum (5a { }^(2) +7ab - 3b {}^(2) ) + (3a {}^(2) - ab - 6b {}^(2)) possible answers: A: 2a {}^(2) + 8ab + 3b {}^(2) B: 8a {}^(2) + 7ab - 3b {}^(2) C: 8a {}^(2) + 6ab - 9…

Question

Find the sum


`(5a { }^(2) +7ab - 3b {}^(2) ) + (3a {}^(2) - ab - 6b {}^(2))`

possible answers:
A:

`2a {}^(2) + 8ab + 3b {}^(2)`
B:

`8a {}^(2) + 7ab - 3b {}^(2)`
C:

`8a {}^(2) + 6ab - 9b {}^(2)`
D:

`12a {}^(2) + 2ab - 9b {}^(2)`​

Answer 1

C
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