Question

Find the product of following
(a) (3x - 4) (3x + 4)
01.​

Answer 1

Step-by-step explanation:

(3x-4)(3x+4)

=(3x)^2-(4)^2

=9x^2-16

Answer 2

$\huge\tt\colorbox{lightblue}{Answer}$

$(3x - 4)(3x + 4)$

$it \: is \: in \: the \: form \: \\ (a + b)(a - b) = {a}^{2} - {b}^{2}$

$a = 3x \\ b = 4$

$(3x - 4)(3x + 4) \\ {(3x)}^{2} - ( {4)}^{2} \\ 9 {x}^{2} - 16$