Answer:
x = 2, -4
Step-by-step explanation:
4x^2 + 8x – 32 = 0
Divide by 4
x^2 + 2x – 8 = 0
Add 8 to each side
x^2 + 2x = 8
Take the coefficient of x
2
Divide by 2
2/2 =1
Square it
1^2=1
Add it to each side
x^2+2x+1 = 8+1
(x+1)^2 = 9
Take the square root of each side
sqrt((x+1)^2) = ±sqrt(9)
x+1 = ±3
Subtract 1 from each side
x = -1±3
x = -1+3, -1-3
x = 2, -4
B/9 is your answer
have a good evening
<u>Answer:</u>
50 miles per hour
<u>Step-by-step explanation:</u>
Step 1: We subtract 600 from 1000. That gives us 400 miles for the second day.
Step 2: Now we divide that by 8, giving us 50 miles per hour. We have our answer!
<h2>
I hope this helped!! PLEASE MARK AS BRAINLIEST!! :)</h2>
Answer:
they are integers and also rational numbers
Answer:
(-3,4) does not work with the equations
Step-by-step explanation:
3(-3)+2(4)=-1
-9+8=-1
-2(-3)-3(4)=-5
6-12=-6