Find the value of the following expression:
m 2 – 2mn – n 2 when m = – 2 ; n = – 1
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m² - 2mn - n²
If m = -2 and n = - 1
= (-2)² - 2 (-2) (-1) - (-1)²
= 4 - 4 - 1
= - 1
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If m = -2 and n = - 1
= (-2)² - 2 (-2) (-1) - (-1)²
= 4 - 4 - 1
= - 1
Hope it helps you
Mark me as a brainlist please ❤️❤️
Bye ☺️
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