Question

simplify(3x+4y)(3x-4y)​

Answer 1

Answer:

Formula (a+b)(a-b = a²-b²

Now let a= 3x and b= 4y

Now ,a²-b²= (3x)²-(4y)²

(3x+4y)(3x-4y)= 9x²-16y²

Thank you

Answer 2

Answer:

By the identity (a+b)(a-b) = a²-b²

By the identity (a+b)(a-b) = a²-b²→ (3x)² - (4y)²

By the identity (a+b)(a-b) = a²-b²→ (3x)² - (4y)²→9x² - 16y²

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