Question

Please solve the question number 12

Answer 1

Answer:

12)16-9(a+b)²

=16+−9a2+−18ab+−9b2

=−9a2−18ab−9b2+16

Answer 2

Answer:

(4 + 3a + 3b)(4 - 3a - 3b)

Step-by-step explanation:

12.

16 - 9(a + b)^2

==> (4)^2 - [3(a + b)]^2

• a^2 - b^2 = (a - b)(a + b)

==> (4 + 3a + 3b)(4 - 3a - 3b)

#Hope my answer helped you.