Question

16a2-144 how do you factorize this?​

Answer 1

Answer :

$\sf 16 \: a {}^{2} - 144 \\ \\ \sf (4a) {}^{2} - (12) {}^{2} \\ \\ \sf (4a + 12)(4a - 12)$

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★ Identity used:

• a² - b² = (a + b)(a - b)

Answer 2

16a²-144

=>(4a)²-(12)²

it is in the form a²-b²

(4a-12)(4a+12)

=>a=3,-3