if x+y=3 then find the value of x^3+y^3-27+9xy
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EASY EASY QUESTION BUT DONT CHEAT BREATH IN AND BREATH OUT AND FOCUS YOUR MIND YOU WILL GET YOUR ANSWER.
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Answer:
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Step-by-step explanation:
We know that (x+y)³=x³+y³+3xy(x+y)
Replacing the values we get, 3³=x³+y³+3xy(3)
⇒27=x³+y³+9xy
⇒0=x³+y³-27+9xy
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