Question

Factorise: 16a2 – 144 but this is a multiple choice question the options are given as

a) 16(a+3)(3a-3)
b) 16(a-3)(a-3)
c)16(a+3)(a-3)
d)16(a+3)(a+3)



pls help me in this question ​

Answer 1

$16a {}^{2} - 144 \\ 16(a {}^{2} - 9) \\ 16(a + 3)(a - 3)$

Therefore, option (c) is correct.

Hope it helps

Please give thanks if you find my answer helpful