1.

Please Factorize it​

Answer»

Answer:

1. LET (a^2 - b^2) is X.

Now, - 1+3x+10x^2

10x^2 +3x-1

10x^2 +5x-2x-1

5x(2x+1)-1(2x+1)

(5x-1)(2x+1) is the answer.

2 . Let (y^2-2y)=x and (z-a) =b

Now, x^2 -3bx+2b

x^2 - 2bx-bx+2b

x(x-2b)-b(x-2b)

(X-2b)(x-b)

So, x=2b or b

Now, x =y^2 - 2y

If x=2b,y^2 - 2y=2(z-a)

So,y^2 - 2y=2z-2a

Ifx=b,

y^2 - 2y=z-a.

I HOPE IT IS HELPFUL! ☺️☺️


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