Question

if m= 3 and n = - 2 find the value of m²-n²- 2mn​

Answer 1

Answer:

17

Step-by-step explanation:

=3^2 -2^2-2×3×(-2)

=9-4+12

=17

Answer 2

Step-by-step explanation:

$m {2} - n {2} - 2mn$

$m = 3andn = - 2$

$3 ^{2} - ( - 2) ^{2} - 2 \times 3 \times - 2$

$9 - 4 + 12$

$5 + 12$

$17$

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