Question

P(x)= 7x^3+12x^2-11x+2

I understand everything about this problem except for what to do about the leading coefficient of (7)x^3

Answer 1

what do you want done with this polynomial?

Answer 2

oh sorry haha
a)list all possible rational zeros of P(x) based on the rational zeros theorem
b) find all real zeros of P(x)

Answer 3

I know that 2 has +/- 1,2 as roots
and 7 has +/1 1,7 roots

but I dont know how to set up the equation with a coefficient other than 1

Answer 4

you'll also have to consider plus/minus 2/7

Answer 5

okay well normally I would set up the equation with syntetic division, now should i consider 2/7 in my synthetic division equation

Answer 6

I just need help setting up the synthetic division equation and then im good

Answer 7

f(2/7) = 0 - i just tried it

Answer 8

so (7x - 2) is a factor divide this in to f(x) using long or synthetic division to get a quadratic

Answer 9

hmm okay but I dont understand the (7x-2) where does that come from?