Question

What is the value of the expression below when x=
4?
2x2 – 2x + 10

Answer 1

The correct answer is 6.

Explanation:

2x2 – 2x + 10 <------ This is the original expression.

2x2 – 2(4) + 10 <----- Change the variable.

4 - 2(4) + 10 <------- Do the multiplication to the left.

4 - 8 + 10 = <------ Do the multiplication in the middle.

-4 + 10 = <----- Do the subtraction to the left.

6 <----- Simplify

Hope this helps! :D