Parts of an Expression Practice

Answer 1

Example 1:
Evaluate the expression 2x + 3y when x = 4 and y = 5.

Solution:
2(4) + 3(5)
8 + 15
23

Example 2:
Simplify the expression 4(x + 3) - 2(x - 5).

Solution:
4(x + 3) - 2(x - 5)
4x + 12 - 2x + 10
2x + 22

Example 3:
Simplify the expression 3x^2 - 2x + 5.

Solution:
This expression is already simplified as it is written in its most simple form.

Example 4:
Simplify the expression 6(x^2 + 2x) - 2(3x^2 + 4).

Solution:
6(x^2 + 2x) - 2(3x^2 + 4)
6x^2 + 12x - 6x^2 - 8
4x - 8