Answer:
x = 3
Step-by-step explanation:
Add 1 on both sides.
We get:
-2x = -6
Now divide -6 by -2...
-6/-2 = 3
Start by writing all of the pairs of numbers that go into 60
1 60
2 30
3 20
4 15
5 12
6 10
Then, look for the pair that has a difference of seven between the two numbers.
Your numbers are 5 and 12
Next time, please list the possible answer choices. Without them, all I can do is to attempt this problem without having those choices as guidelines.
I must assume that your expression x^4-5x+3/x^2+7 actually meant:
5x + 3
x^4 - ---------------
x^2 + 7
and I assume that this result was one of the several possible answer choices.
