Find the value of x^3+y^3+15xy-125 if x+y=5

Question

asked Jun 7, 2020 3.0k views

1 Answer

← Prev Question Next Question →

Related questions

asked Apr 22, 2024 172k views

Which of the following is a factor of 500x ^ 3 108y ^ 18 a. 6 b. 5x +3y^6 c. 25x^2 + 15xy^6+9^2 d. all of the above

TrolleFar asked Apr 22, 2024

by TrolleFar

7.3k points

1 answer

1 vote

172k views

asked Feb 3, 2024 127k views

What is the simplified form of the following expression 15xy/-5x

Caleb Pitman asked Feb 3, 2024

by Caleb Pitman

7.8k points

1 answer

3 votes

127k views

asked Jun 17, 2024 204k views

What is the coefficient of 15xy?

ACC asked Jun 17, 2024

by ACC

6.7k points

2 answers

5 votes

204k views

Ask a Question

Lop Hu · Answer 1 · 2020-06-12T12:32:53+0000

Answer:

0

Explanation:

x+y=5

x^3+y^3+15xy-125

(x+y)(x^2-xy+y^2)+15xy-125

5(x^2-xy+y^2)+15xy-125

5x^2+5y^2-5xy+15xy-125

5x^2+5y^2+10xy-125

5[x^2+2xy+y^2]-125

5(x+y)^2-125

5(5)^2-125

125-125

0

Find the value of x^3+y^3+15xy-125 if x+y=5

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

Related questions

Categories

Other Questions