Question

What are all the ZEROS? Show all the work!
(2x+6)(x-4)

Answer 1

-3,4

Explanation:

(2x+6)(x-4) = 0

Using the Zero Factor Principle: If ab =0 then a=0 or b=0

2x+6=0 or X-4=0

solve 2x+6=0:

2x+6=0

Subtract 6 from both sides

2x+6-6 0-6

Simplify

2x = -6

Divide both sides by 2

2x/2 = -6/2

Simplify

X=-3

then x-4 =0

add 4 from to both sides

x=4

zeros : -3,4

(-3,0),(4,0)

Answer 2

4 and -3

Explanation:

2x+6=0

2x=-6

-3

x-4=0

x=4

So its 4 and -3