Question

How do I solve this? Step by step

Answer 1

Answer:

24.

Step-by-step explanation:

Substitute each instance of x with a 3.

That leaves us with 3^2 + 3x - 5 + 3^2 - 3x + 11.

Combine like terms.

2(3^2) + 6.

Simplify.

2(9) + 6

18 + 6

24.

Answer 2

Answer:

24

Step-by-step explanation:

To solve this equation, you can first simplify the equation by combining like terms. For example, we have two positive x²'s meaning we can simplify this to 2x². After simplifying you should get:

2x² + 6

(We no longer have any values with just x since the positive 3 and negative 3 cancel each other out)

Now, you need to input 3 wherever there is an x. I would suggest putting parenthesis wherever you input this value to avoid confusion.

You should get this:

2(3)² + 6 =

From there, you can start solving the equation to get your answer. You should get something similar to this:

2(9) + 6 =

18 + 6 = 24

~Hope this helps!~