Question

The expression (3x − 4y2)(3x + 4y2) is equivalent to:

Answer 1

9x-16y2

Explanation:

Combine like terms! 3 x 3= 9 -4y2 x 4y2= -16

9x-16y2

Answer 2

`point \\ (a + b)(a - b) = {a}^(2) - {b}^(2) \\ so \: we \: have \: \\ ({3x})^(2) - ({4 {y}^(2) })^(2) = 9 {x}^(2) - 16 {y}^(4)`

i hope i have been useful buddy.

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