Question

-2的平方 减负二分之一的负二次方 减二减2根号下2的绝对值 +根号下8

Answer 1

(-2)^2-(-1/2)^(-2)-|2-2√2|+√8

=4-1/4-(2√2-2)+2√2

=4+2-1/4

=23/4