factorise 72x2 - 16y2
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Step-by-step explanation:
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Answered by
1
Step-by-step explanation:
(6root 2 x)² - (4y)²
by identity (a)²-(b)²=(a+b)(a-b)
(6root2x +4y)(6 root 2x-4y)
it is the given solution
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