Question

How do you evaluate `5\times -2+ -5\times -2`?

Answer 1

Use the order of operations. PEMDAS

Explanation:

Start by multiplying from left to right.

`(5*-2)+(-5*-2)=?`

`(5*-2)=-10`

`(-5*-2)=10`

`(5*-2)+(-5*-2)=0`

Note: Since the problem didn't have parenthesis, they are not required. They may be helpful to use though, to group things together and keep yourself organized.

A positive multiplied by a negative results in a negative value. Hence `(5*-2)`.

However, a negative multiplied by a negative, results in a positive value. Hence `(-5*-2)`

Way to remember positive and negative reading:

Positive `=` Good Outcome.
Negative `=` Bad Outcome.

Answer: `- 10 + + 10 = 0`