Question

If x+y =5,and xy=6,then find xcube-ycube

Answer 1

Answer:

Step-by-step explanation:

Given, x+y=5--------(1)

Squaring on both sides, we get

x²+y²+2xy=25

Given, xy=6-----(2)

→x²+y²+2(6)=25

x²+y²+12=25

x²+y²=13--------(3)

Now, x³+y³=(x+y)(x²+y²-xy)

From (1),(2),(3) we get

x³+y³=5(13-6)

=5(7)=35

I hope this will help you ;)

Answer 2

Answer:

Step-by-step explanation:

Your answer is 19 .

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