Question

factorise the following:
1) y² - 144











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Answer 1

Answer:

Use the formula:-a^2-b^2=(a+b)(a-b)

y^2-144=(y+12)(y-12) [Ans]

Answer 2

Answer:

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Step-by-step explanation:

${y}^{2} - 144 \\ = > {y}^{2} - {12}^{2} \\ = > (y + 12)(y - 12) \\ = > y = ±12$

Formula :-

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