Question

If a = 2 , b = -2 then the value of a+2 + ab - b2 is
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Answer 1

$2 + 2 + 2 \times - 2 \times - 2 \times 2 \\ 2 + 2 + 16 \\ 20$

Answer 2

Answer:

a =2 ,b=-2

a+2+ab-b2

2+2+2×-2--2×2

4-4-4

4 Answer