2(-12) + 5² = 2(-12) + 25 = -24 + 25 = 1.
-4 + -5 + -2 + -1 = -12 (negative 12).
3
zero
Windows calculator comes up with 0.17361111 (the figure 1 repeats indefinitely)
Nonlinear
The total sum is -12 or negative twelve.
Negative 12 to the power of 2 is -144
-5 + -12 = -17
Rearrange as: 2t2+11t+12 = (2t+3)(t+4) when factored
... and what is the question?
That's a total of -12.
The sum of -0.8 and -12 is -12.8