Question

Hi guys, please help me to find the possible value of x.
x^3+2x^2-29x-30

Answer 1

is there an = 0 at the end there?

Answer 2

To verify check if f(-1) = 0
\[f(-1) = (-1)^3 + 2(-1)^2 -29(-1) -30 \\ = f(-1) = -1 + 2 +29 -30 = 0\]
Hence
\[(x+1) \ is \ a \ factor \ of \ x^3 + 2x2 - 29x -30\]
< apply remainder theory>

Answer 3

Hello, DO you know finding a ZERO of a term as such lets take (x+1)

What you have to do is - x+1=0
there fore x= -1 ( shifting the terms)

Answer 4

k thanks yarr