How do you solve 7+8(3^2-2)?

2 Answers
Aug 2, 2016

Use the PEMDAS method.

Explanation:

The PEMDAS method is a method of simplifying an expression with multiple operations. PEMDAS stands for:

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

Let's go through our expression and solve it using this method.

Parentheses

We have (3^2-2):

3^2=3*3=9-2=7

Our expression now reads 7+8(7).

There are no exponents.

Multiplication

We have 8(7).

8*7=56

Our equation now reads 7+56.

There is no division.

Addition

We have 7+56.

7+56=63

63 is our answer.

Aug 2, 2016

=63

Explanation:

First count the number of terms....
Follow the order of operations, doing strongest operations first.

color(magenta)(7)color(blue)( + 8(color(red)(3^2)-2))" has 2 terms"

=color(magenta)(7)color(blue)( + 8(color(red)(9)-2))

=color(magenta)(7)color(blue)( + 8(color(red)(7))

=color(magenta)(7)color(blue)( +color(red)(56)

=63