Question

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Q】If m= -2 and n =2 ; Find value of :
1) m² + n² —2mn
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Answer 1

Answer:

-2^2+2^2- 2×(-2)×2

4+4-4×2

8-4×2

4×2

8

8 is your answer

Step-by-step explanation:

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Answer 2

Answer:1

Step-by-step explanation:you know that (m-n)²=m²+n²-2mn

Therefore (-2-2)²=(-4)²=16