The polynomial function f(x)=−x^3− 2x^2 + 5x−6 has one negative zero.
Between what integers does this negative zero occur?
−6 and −5
−5 and −4
−4 and −3
−3 and −2
I won't perform the computations....but here is a way to tell
put (-6) into the function and evaluate
put (-5) into the function and evaluate.....if the signs on the reults are different, then a zero occurs between these values
If you have to ...do the same with -5 and -4 , -4 and - 3 and -3, and -2
If you do this correctly, you should find that -4 and -3 is correct !!!