Answer:
Option 2
Explanation:
There are many ways to do it. You can also just use your scientific calculator to directly get the answer. But now I'm going to solve the equation by factoring.
8x² + 40x = 0
Factor out 8x from the expression
8x ( x + 5 ) = 0
Divide both sides by 8
8x ( x + 5 ) ÷8 = 0 ÷8
x ( x + 5 ) = 0
Now we have two factors, x & x+5. Set each factors equal to zero
x = 0
x + 5 = 0
Now solve the equation
x = 0
x = -5
Then you get the answer!
