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factorise the folowing : 1) 3(x+2y)^2 + 5(x+2y) + 2 2) 125(x-y)^3 +(5y-3z)^3 + (3z-5x)^3

factorise the folowing : 1) 3(x+2y)^2 + 5(x+2y) + 2
2) 125(x-y)^3 +(5y-3z)^3 + (3z-5x)^3

Grade:9

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
2 years ago
Dear student

Let(x+2y) be t

so the question is 3t^2 +5t +2

solve the quadratic and then substitute back as (x+2y)

Regards

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