Question

Find the equivalent expression for (x + 7)(x + 1)​

Answer 1

`(x + 7)(x + 1) = {x}^(2) + 7x + x + 7 \\ = {x}^(2) + 8x + 7 \\ Answer:\: \: \: \: \: \: \boxed{{x}^(2) +8 x + 7}`

Answer 2

x² + 8x + 7

General Formulas and Concepts:

Algebra I

• Terms/Coefficients/Degrees
• Expand by FOIL (First Outside Inside Last)

Explanation:

Step 1: Define

(x + 7)(x + 1)

Step 2: Expand

1. Expand [FOIL]: x² + x + 7x + 7
2. Combine like terms: x² + 8x + 7