3 years ago

Evaluate 8x^2 + 2x + 5, when x =7

Mathematics

1 answer:

bixtya [17]3 years ago

3 0

Answer:

432

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

8x² + 5x + 5

x = 7

<u>Step 2: Evaluate</u>

Substitute in <em>x</em>: 8(7)² + 5(7) + 5
Evaluate exponents: 8(49) + 5(7) + 5
Multiply: 392 + 35 + 5
Add: 427 + 5
Add: 432

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