Simply the expression: 7x (1-9)?

3 Answers
Apr 22, 2018

-56x

Explanation:

Using the order of operations, we know we need to do the stuff inside the parentheses first, so we find that
#1−9# is #-8#. Then we multiply #-8*7x #to get #-56x#,#(-8⋅7=-56)#,

Apr 22, 2018

#7xx(1-9)=color(blue)(-56#

Explanation:

If you mean #7xx(1-9)#:

Follow the order of operations as indicated by the acronym PEMDAS:

  1. Parentheses/brackets
  2. Exponents/powers
  3. Multiplication and Division in order from left to right.
  4. Addition and Subtraction in order from left to right.

In the expression #7xx(1-9)#, first simplify #(1-9)# to #-8#.

#7xx(-8)#

Now multiply.

#7xx(-8)=-56#

Apr 22, 2018

#7xx(1-9)=color(blue)(-56#

Explanation:

If you mean #7xx(1-9)#, follow the order of operations as indicated by the acronym PEMDAS.

  1. Parentheses/brackets
  2. Exponents/radicals
  3. Multiplication and Division in order from left to right.
  4. Addition and Subtraction in order from left to right.

#7xx(1-9)#

Simplify #(1-9)# to #-8#.

#7xx-8#

Multiply.

#-56#