Solve b(a+4): Substituting Values a=-6 and b=-2

Question

$b\cdot(a+4)=$

Replace and calculate if $a=-6,b=-2$

00:00 Set up and calculate

00:05 Let's substitute appropriate values according to the given data, being careful with parentheses

00:17 Let's calculate the parentheses

00:27 Negative times negative always equals positive

00:31 And this is the solution to the question

Let's begin by inserting the known data into the formula:

$-6\times(-2+4)=$

First, let's solve the expression inside of the parentheses:

$-2+4=2$

We should obtain the following expression:

$-6\times2=$

Remembering the rule:

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

The answer should be:

$-12$

$-12$