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3b5+11ab if a is -5 and b is 2

1 Answer

2 votes

Answer:

-80

Explanation:

Okay, let's break this down. A is -5 and B is 2. We know that. So if we plug in the variables it will look like this

3(2)5+11(-5)(2).

Let's deal with the first side of the equation! Before we do if you plug in a number for a variable, then it is basically multiplying the number before it. For example, if a s 7 and you have 2a then that it is 2 x7.

The first side of the equation

3(2) is 6, then 6 x 5 is 30. So after solving the first side of the equation, we end up with 30.

The second side of the equation

11(-5) is -55, then -55 x 2 is -110, so after solving the second side of the equation, we end up with -110.

Now Let's add them together

30 + -110 or better written as -110 plus 30 = -80.

So the answer is -80

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