How do you evaluate #-7^2#?

1 Answer
Jun 10, 2016

Answer:

#-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)|)))#