Using the quadratic equation formula to solve 7x^2-x=7, what are the values of x
1 answer:
quadratic formula:
x = <u>-b ± √(b² - 4ac)</u>
2a
7x² - x = 7
subtract 7 from both sides:
7x² - x - 7 = 0
plug values into the quadratic formula:
x = <u>-(-1) ± √((-1)²- 4(7)(-7))</u>
2(7)
simplify:
x = <u>1 ± √(197)</u>
14
You might be interested in
The answer to your problem is -1x.
Answer:
Two to One
Step-by-step explanation:
Answer:
B.used the addition property
Step-by-step explanation:
took it on my test
Instead of subtracting 10, you can add negative 10
Commutative property would be the answer.