How to multiply in a polynomial equation.

2x(5 + 4x)

Step 1:

10x + 8x^2

If there is something outside the brackets, make sure to multiply it with everything inside the brackets. After multiplying the brackets can be removed.

Step 2:

Check if there are any like terms.

If there aren’t any then this should be your final answer.

10x + 8x^2