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

2 Answers
Bhavin B.
May 3, 2018

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

EZ as pi
May 3, 2018

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

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