if x+y+4=0 then find the value of x³+y³
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Answer:
Step-by-step explanation:
if you want an integral value of x³ + y³ then please check the question
otherwise
x³+y³ = (x+y)(x²+y²-xy)
=(x+y)((x+y)² -2xy-xy)
=(x+y)((x+y)²-3xy)
= (-4)((-4)²-3xy)
= -4(16-3xy)
= 12xy-48
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