So all you have to do is divide the fractions. you would write 7/15 in your calculator, and boom you have the answer. or, you can just divide it by pencil and paper, which is harder. 4/5=0.8
What we want to do here is make it long division. x²+2x+8 on the left, and
+x³+7x²-6x+8 on the right, as will be shown
x²
________________________________________
x²+2x+8|
+x³+7x²-6x+8
We start off by dividing
by x², which is x². After that, we put x² at the top and subtract (x²+2x+8)*(x²) from the whole equation, which looks like
x²
________________________________________
x²+2x+8|
+x³+7x²-6x+8
- (
+2x³+8x²)
_____________________
-x³-x²-6x+8. Continue this pattern until you can't (the next step would be dividing (-x³ by x²) and you should have your answer! Good luck, and feel free to ask any questions as necessary!
Lets say the smallest number is x
Then the larger on is x+8
Since x+x+8=23
x=7.5
7.5+8=15.5