25. Find (2xy + 5y)2 using algebraic identities.
26. Factorise: 15xy - 6x + 5y - 2
(if u give wrong answer or say like I don't know please do not do that I need correct answer )
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25. Find (2xy + 5y)2 using algebraic identities.
26. Factorise: 15xy - 6x + 5y - 2
(if u give wrong answer or say like I don't know please do not do that I need correct answer )
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Answer:
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Answer:
(i)4x²y²+25y²+20xy²
(ii)(5y-2)(3x+1)
Step-by-step explanation:
(i) identity will be (x+y)²=x²+y²+2ab
(2xy+5y)²=(2xy)²+(5y)²+2(2xy)(5y)
=4x²y²+25y²+20xy²
(ii)15xy-6x+5y-2
3x(5y-2)1(5y-2)
(5y-2)(3x+1)