49x^2 +9y^2+42xy factorize
gujjarankit:
(7x+3y)^2
yes
its right
i already have solved it
but already two r answering that's why i can't answer it
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49x^2 +9y^2+42xy factorize
solution:
=49x^2 +9y^2+42xy
=(7x)² + (3 y)² + 7x × 3y × 2
we know that,
(a+b)²=a²+b²+2ab
so,
= (7x + 3y)²
or,
(7x+3y)(7x+3y)
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