How do you simplify #2 + 3 * 5^2 - 7#?

2 Answers
May 3, 2018

Answer:

Answer is #7.25#

Explanation:

We use PEMDAS:
Exponential first, then addition and the subtraction in this given question.
#2+3.5^2-7#
#2+ color(red)12.25-7# ----> exponential
#color(red)14.25-7# -----> addition
#color(red)7.25#------> subtraction
Answer is #7.25#

May 3, 2018

Answer:

#70#

Explanation:

The given expression has #3# terms.

Simplify each term to a single answer and then add or subtract them in the last step.

#" "2+3xxcolor(red)(5^2) -7#

#=2+color(blue)(3 xx 25) -7#

#=2+75-7#

#=70#