Question

(2x-3) (2x + 3) simplify ​

Answer 1

$(2x - 3)(2x + 3)$

$there \: \: is \: \: a \: \: formula$

$(a + b)(a - b) = (a) ^{2} -( b)^{2}$

$so \:$

$(2x) ^{2} - (3) ^{2}$

$ans \: \: = 4x ^{2} - 9$

Answer 2

(a-b)(a+b) = a^2-b^2

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

= 2x^2-9

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