Evaluate 2x squared plus 3x plus 8 when x equals 4.

1. Substitute 4 for x: 2 times 4 squared plus 3 times 4 plus 8. 2. Simplify the exponent first: 4 squared is 16, so the first term becomes 2 times 16, which is 32. 3. Multiply the second term: 3 times 4 is 12. 4. Add all three terms together: 32 plus 12 plus 8 equals 52. _Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 1 "Foundations", section 1.2 Use the Language of Algebra_