Question

What are the zeros of f(x) = x3 + 6x2 + 3x – 10 ?

–2, 1, 5

2, –1, –5

–2, 1, –5

–2, –1, –5

Answer 1

I would solve it this way.

If x is a zero of P(x) then P(x) = 0.

Answer 2

how would i do that?

Answer 3

I will test 2 and -2 first. Whichever gives zero when plugged into the function is "zero" of the function.

Answer 4

ohhh, each digit plugged in needs to equal zero?