## Answer :

When you have exercices like this tipe you write the base and add the exponents.the exponents are: 2; -4 and 5 so you put them in a sum:

2+ (-4) + 5=

=2 -4+5=

=7 -4=

=3

When you have exercices like this tipe you write the base and add the exponents.the exponents are: 2; -4 and 5 so you put them in a sum:

2+ (-4) + 5=

=2 -4+5=

=7 -4=

=3