Question

determine between which consecutive integers one or more real zeros of f(x)=x^3+x^2-5 are located

Answer 1

can you graph it to find out?

Answer 2

like on a graphing calculator

Answer 3

i cant find my graphing calculator:/

Answer 4

are you suppose to do it without a graphing calculator?

Answer 5

yep i am:/

Answer 6

I think there might be a theorem somewhere if I can find it

Answer 7

are you aware that if a function \(f(x)\) has a zero then at some point it must cross the x-axis?

Answer 8

e.g.: