hey guys I have an exam tmrw i need help pleaseeeeee
plz answer the question below
if x + 2y + 3z = 0 then the value of x³+8y³+27z³ is?
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Answer:
i think 3xyz
We know that x3 + y3 + z3 3xyz = (x + y + z) (x2 + y2 + z2 xy yz zx)
Putting x + y + z = 0, x3 + y3 + z3 3xyz = (0)
(x2 + y2 + z2 xy yz zx) x3 + y3 + z3 3xyz = 0 x3 + y3 + z3 = 3xyz
hari0927:
imma suffer alone.
pretty sure my friends are suffering too.
??
hehe lol
well then i gotta study bye.
tomorrows
byee
Your answer was actually correct
partially
how was ur test
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