Question

solve using identitites (2a + 9) (2a - 6). please help me im desperate ​

Answer 1

Answer:

4a²-36

Step-by-step explanation:

it must be (2a+6)(2a-6)

then we can solve it using identities

(2a+6)(2a-6)

(2a)²-(6)²

4a²-36

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