Q. 1.     If  m=2, find the value of:

             (iv)  3m^{2}-2m-7

Answers (1)
S Sayak

\\3m^2 - 2m - 7 \\= 3 \times 2^2 - 2 \times 2 - 7 \\= 12 - 4 - 7 \\= 1

If m = 2 the value of 3m2 - 2m - 7 = 1

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