Question

1) Find a polynomial whose zeroes are double the zeroes of P(x)=x^3-7x^2-5x+2.

Answer 1

2) Find two non-zero numbers a and b such that \[ax^2+bx+16=0\] has roots a and b.

Answer 2

It is poor form to ask multiple questions in the same post

Answer 3

no one was replying so I asked different questions to see if someone could help with different ones.

Answer 4

for the 3) question, you could multiply out (x- (2-i))(x-(2+i))
and divide that into the original equation.

Answer 5

what do you mean divide that into the equation?