X^2 - 14 x = 15
(x - 7)^2 - 49 = 15
(x-7)^2 = 64
x - 7 = - or + 8
x = 15 or -1
Just take half o the coefficient of x and subtract it squared as above.
In general
x^2 + ax = b
(x + a/2)^2 - a^2/4 = b
Answer:
(45 miles) / ((1 hour) + (45 minutes)) =
11.4953143 m / s
Step-by-step explanation:
Answer:
You should go to algebraic calculator. its amazing
Step-by-step explanation:
brainliest?
-5/13
Formula: Y2-Y1/X2-X1
Answer: Yes. When you solve your equations, you're solutions will change a little bit. It's good because it'll give you the right answer.
I hope this helps you and I hope it's right. ☺
