Question

(7m+3n)^2 + (7m-3m)^2 solve using identity PLEASE TELL FAST IT IS VEY URGENT

Answer 1

Answer:

3m2−2m−7=3(2)2−2(2)−7  [Putting m=2]

=3×4−2×2−7=12−4−7

=12−11=1.

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