MATH SOLVE

8 months ago

Q:
# Which of the following is a zero does the function f (x) =(x+3) (x-7) (x+5)X=-7X=-3X=3X=5

Accepted Solution

A:

Answer:x=-3Step-by-step explanation:[tex](x + 3)[/tex]x+3=0 -3 -3x= -3opposite of addition would be subtraction. since your trying to solve for x You want to get x alone and you subtract by 3 on both sides which would cancel the 3 on the left, leaving:[tex]x = - 3[/tex]if you follow the same process on all of them you come to the conclusion that only -3 is a zero in the options listed. NOTE: When you become more experienced whenever you see expressions like that you'll come to realize that the zero is the opposite sign of the number if it's just x- or x+ a number. example:[tex](x - 40)[/tex]it'll be the opposite sign so since it's a negative the zero of that would be positive 40. hope this helps!