The problem
Click to see the original problem
How does the minus 121 =11with an exponent of 2
Answer provided by our tutors
121 = 11*11 = 11^2
So, having "-" in front of 121 will not change anything:
- 121 = - (11*11) = - 11^2
If you put '11^2' into the equation instead of '121' you get: