Question

Integral factor of xy (1 + xy2) dy/dx=1

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Answer 1

Answer:

1x+xy3/3

Step-by-step explanation:

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Answer 2

Answer:

25(2x+y)^2-16(x-y)^2[5(2x+y)]^2-[4(x-y)]^2

using identity a^2-b^2=(a+b)(a-b)

[5(2x+y)+4(x-y)] [5(2x+y)-4(x-y]

[10x+5y+4x-4y][10x+5y-4x+4y]

(14x-y)(6x+9y)

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