Question

using suitable identies (3x+4 ) (3x_4)​

Answer 1

Answer:

9x^2-16

Step-by-step explanation:

this is your answer.

Answer 2

$(3x + 4)(3x - 4) \\ it \: is \: in \: the \: form \: of \: \\ (a + b)(a - b) = ( {a}^{2} - {b}^{2} ) \\ \\ a = 3x \: \: and \: \: b = 4 \\ \\ ( {3x)}^{2} - ( {4}^{2} ) \\ = 9 {x}^{2} - 16$