factorise : 144/a²b² - x²/y²
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Step-by-step explanation:
144/a^2b^2 -x^2/y^2
answer is
(12/ab)^2 -(x/y)^2
wkt
a^2-b^2=(a+b)(a-b)
a=12/ab ,. b=x/y,
=(12/ab+x/y) (12/ab-x/y)
=(12y/abx) (-12y/abx)
factors are 12y/abx & -(12y/abx)
i think so
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