I get how to do part (a) and part (c) but I'm totally lost on how to do part (b)
If f(1)=0 then that must mean x=1 is a root, so that you can factorise f(x)=(x−1)(⋯) where the (⋯) is some quadratic that you find by using long division on f(x) with x−1. Then you can probably further factorise that quadratic.
By the way, post maths queries in the maths forum next time.
YouTube search algebraic long division for the second once you use this you'll get a quadratic factor (I think that's it's name). Then you can factorise this to find all three overall linear factors. Btw what were the ans to the Qs, wanna check with what I've done
If f(1)=0 then that must mean x=1 is a root, so that you can factorise f(x)=(x−1)(⋯) where the (⋯) is some quadratic that you find by using long division on f(x) with x−1. Then you can probably further factorise that quadratic.
By the way, post maths queries in the maths forum next time.
YouTube search algebraic long division for the second once you use this you'll get a quadratic factor (I think that's it's name). Then you can factorise this to find all three overall linear factors. Btw what were the ans to the Qs, wanna check with what I've done