Answer:
2.5x7 = 17.5 but since it's dropping -17.5
Step-by-step explanation:
Using quadratic formula you can have a maximum of two solutions. When you set this problem equal to zero, your a=-1, b=-10, c=2
Answer:
x = 4
Step-by-step explanation:
4(5x - 2) = 72
Do the distributive property
20x - 8 = 72
Then add 8 to both sides to get 20x alone
20x - 8 = 72
+ 8 + 8
20x = 80
Then divide both sides by 20 to get x

x = 4
This is an impossible equation.
If you have something and you add 3 to it, how can the result be the same as the original?