Factorize: 4(x+y)² - 28(x+y) + 49y²
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if this ques has middle term 28y(x+y)
then by the formula (a-b)^2=a^2+b^2-2ab
[2 (x+y)-7y]^2
=(2x+2y-7y)^2
=(2x-5y)^2
then by the formula (a-b)^2=a^2+b^2-2ab
[2 (x+y)-7y]^2
=(2x+2y-7y)^2
=(2x-5y)^2
EmoLord:
Middle term isn't stated
the question should have a 'y' in middle term.
Yep, it has
Elaborate it, please.
GOT IT! Thanks again.
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5
00000000000000000000
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