Question

Find the value of x3 + y3 -12xy + 64, when x + y = -4.

Answer 1

Answer:

if

y

x

+

x

y

=−1

simplifies to x

2

+xy+y

2

=0

as (x

3

−y

3

)=(x−y)(x

2

+xy+y

2

)=0 using above result

Step-by-step explanation:

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