Solving quadratic equations by factoring

x=-9/2, -2

Step-by-step explanation:

2x+9=0 subtract 9 and divide by 2 to isolate x.

x=-9/2

(writing a 1 in front of the x is unnecessary)  x+2=0 subtract 2 to isolate x.

x=-2

answer: are you

step-by-step explanation:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10