Question

factorise 2x^2-2x-84 ​

Answer 1

Answer is 2(x^2-x-42)

Explanation:-

2x^2= (2×x×x)

-2x= (2×-x)

-84= ( 2×2×3×-7)

So all in these 2 is common

So 2 is taken common

And remaining number ate jnsife parentheses

2(x^2-x-42)