Question 16
Algebraic ExpressionsIf x + y = 10, xy = 21. Find x2y + xy2
- A.231
- B.210
- C.147
- D.189
Show the answer and explanation
Answer: B (210)
Explanation
x²y + xy² = xy(x + y) = 21 × 10 = 210.
If x + y = 10, xy = 21. Find x2y + xy2
Answer: B (210)
x²y + xy² = xy(x + y) = 21 × 10 = 210.