Solve the following according to the given instructions (08) Evaluate using suitableIdentities. 1. (2a + 7) (2a – 7)
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see for a
Step-by-step explanation:
2a+7
2a-7
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Identity is (a+b)(a-b)=a2-b2
(2a)^2-7^2
4a2-49
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