Solve a·b+b: Substituting Values a=-3 and b=-2

Question

$a\cdot b+b=$

Solve the following problem if:

$a=-3,b=-2$

00:09 First, set up the problem, then calculate the answer.

00:13 Let's substitute the right values, following the data carefully. Remember to use parentheses correctly.

00:35 Remember, negative times negative equals positive.

00:49 And positive times negative equals negative.

00:53 That's how we solve the problem! Great job!

Let's substitute the numbers into the formula:

$-3\times(-2)+(-2)=$

Remember the rule:

$(-x)\times(-x)=+x$

First, let's solve the multiplication problem:

$-3\times-2=6$

We obtain the following expression:

$6+(-2)=$

Let's remember the rule:

$+(-x)=-x$

Let's write the expression in the appropriate form:

$6-2=$

Therefore, the answer is:

$4$

$4$