Question

15. If x + y = 12 and xy = 14 Find the value of x³+y²​

Answer 1

Step-by-step explanation:

x+y=12

xy=14

x³+y³

=(x+y)³-3xy(x+y)

=12³-3(14)(12)

=12(144-42)

=12X102

=1224

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Answer 2

Question:-

If x + y = 12 and xy = 14. Find the value of x³+ y³

Used identity

${(a + b)}^{3} = {a}^{3} + {b}^{3} + 3ab( a + b)$

Solution:-

See the attachment