-If x+y=10 and x-Y=6 whatis value of X3-Y3

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asked Jan 12, 2022 27.9k views

1 vote

-If x+y=10 and x-Y=6 whatis value of X3-Y3

Mathematics
high-school

BrandonReid asked

by BrandonReid

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2 Answers

5 votes

Answer:

Explanation:

$x + y = 10 (1)\\ x - y = 6(2) \: \\ 2y = 4 \: \: ie \: y = 2 \\ x + y = 10 \\ x = 10 - 2 \\ x = 8 \\ x3 - y3 = (8 * 3) - (2 * 3) \\ = 24 - 6 \\ = 18$

Ponnex answered Jan 15, 2022

by Ponnex

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7 votes

Answer = 18

If you mean x times 3 and y times 3, x= 8 and y = 2 so (8*3)-(2*3)=18

KekuSemau answered Jan 18, 2022

by KekuSemau

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