How many total roots are must there be in this function explain how you know
h(x)=x3-7x2-x+7

total 3 roots,

How do I know?:

put this function in graphing calculator

And if you don't have a graphing calculator, then calculate it out bu yourself:

(x + 1)(x − 1)(x − 7) = 0

answer is because 4×10=40

and 98×4= is 392

40,392

zero

step-by-step explanation:

f(2)= x-2

plug in the 2 in the "x"

f(2)=2-2

f(2)=0