Question

-n^2+7,if n=-1
please solve the above equation

Answer 1

Answer:

8

Step-by-step explanation:

If n is equal to -1 then...

-n^2+7

= - (-1)^2+7

= 1^2+7     ｛ '-'(minus)  X (into) '-'(minus) becomes plus, thus -(-1) became 1 ｝

= 1+7

=8

Hope it helps you! Please mark as the brainliest answer :)

Answer 2

Answer: +5

Step-by-step explanation: -n*2+7

= -1*2+7

= -2+7

= +5