Question

if a= 2, b=-2 find the value of:

a) a²+ b²-ab
b) a³ - b³ ​

Answer 1

Answer:

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Answer 2

a.a²+b²-ab

(2)²+(-2)²-2×(-2)

4+4+4

12

b.a³-b³

(a-b)(a²+b²+ab)

4×4

16