Math, asked by Simin8780, 7 months ago

Simplify:(3a+7)^2-(3a-7)^2

Answers

Answered by appuamma5226

Step-by-step explanation:

Find the solution of each equation by inspection. a. x + 5 = 12 b. 4 · x = -20. Solutions a. 7 is the solution since 7 + 5 = 12. b. -5 is the solution since 4 (-5) = -20 ...

Answered by natasha149025

Answer:

(3a+7+3a-7)(3a+7-3a+7)

6a×14

84a

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