All you have to do is add up all of the sides.
then once you have X, for part 2 all you need to do is replace X with 4 and then solve
X2 - 10x = 7
You move the constant to the right which looks like: - 10x = 7 - 2
- 10x = 5
Then you divide both side by -10. The answer is:
X = -1/2 OR x = -0.5
The answer is going to be A
Answer:
Part A
to the 10th power will be positive and to the 11th power is negative. When the exponent is even it will be positive. When it is odd it will be negative
Part B
The one with the negative enclosed will be positive. The second one, the exponent is only effecting the number and not the sign. The outcome will always be negative.
To solve 4n you need to divide both sides by 4
