Question

Using identity, simplify (2a-3)(2a-3)​

Answer 1

Answer:

$\sf \pink{Question:-}$

$\sf \: simplify \red{ (2a-3)(2a-3)}$

$\bold{Note-} \sf \: (a+b) (a-b)=a {}^{2} - b {}^{2}$

$\sf \: (2a + 3) \: (2a - 3) =2a {}^{2} - 3 {}^{2}$

$\bold{49a {}^{2} - 9}$

$\sf \: \: hence \: \: \frak{ \red{ 49a {}^{2} - 9}}$