5m2-29if m=2
a)-9
b)+9
c)54
d)-54
To find the value of the expression 5m^2 - 29 when m is equal to 2, we can substitute the given value of m into the expression and compute the result.
First, we replace m with 2 in the expression:
5(2)^2 - 29
Next, we simplify the expression by performing the necessary calculations:
5(4) - 29
Now, we multiply 5 by 4:
20 - 29
Finally, we subtract 29 from 20:
-9
Therefore, the value of the expression 5m^2 - 29 when m is equal to 2 is -9. So, the correct answer is option a) -9.