Question

Two positive numbers, x,and y are such that x is greater than y . If the different of these numbers is 5and thier product is 24,find
1-sum of these numbers.
2-difference of there cubes .
3-sum of there cubes.

Answer 1

Answer:

11, 485 and 539

Step-by-step explanation:

Given that x>y

Since x is larger, x-y=5

xy=24

Since x-y=5

We can also write x=y+5

Now, xy=24

So, y(y+5)=24

By observation, y=3 and x=8

This can be proved as right since x>y (because 8>3)

Now 1) sum = x+y = 8+3 = 11

2) difference of cubes = 8³-3³ = 512-27 = 485

3) sum of cubes = 8³+3³ = 512+27 = 539