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Algebraic Expressions

Algebraic Expressions

Evaluating Expressions by Substitution Exercises

Example 1

Evaluate -3x + 4 for x = -2.

Example 2

Evaluate  for x = 10.

Example 3

Evaluate 4x2 for x = -1.

Example 4

Evaluate 5y – 3y2 for y = -2.

Example 5

Evaluate z3 – 18 + z for z = -2.

Example 6

Evaluate 4xyz + x + yz for x = 2, y = 3, and z = 5.

Example 7

Evaluate b2 – 4ac for a = 1, b = 3 and c = -2.