How do you evaluate -7^2?

1 Answer
Jun 10, 2016

-49

Explanation:

Recall that an exponent represents the number of times the base is multiplied by itself.

For instance, in your case,

-7^2

ul("where"):
base=7
exponent=2

the expression means to multiply 7 by itself two times.

Hence,

=-(7xx7)

=-(49)

=color(green)(|bar(ul(color(white)(a/a)color(black)(-49)color(white)(a/a)|)))