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Elementary Algebra

Lynn Marecek, MaryAnne Anthony-Smith

$Math Studyset 91影视 Explanations$ Math

2nd Edition 路 1240 pages

ISBN: 9780998625713

Chapter 6: Q 6.7 (page 718)

Multiply: $(a + 10) (a + 7)$

Short Answer

Expert verified

The required answer is $a^{2} + 17 a + 70$ .

Step by step solution

01

Step 1. Given information.

The given expression is:

$(a + 10) (a + 7)$

We have to multiply the given expression.

02

Step 2. Use the distributive property to multiply.

$(a + 10) (a + 7)$

Now distribute,

$= a 路 (a + 7) + 10 路 (a + 7)$

distribute again,

$= a^{2} + 7 a + 10 a + 70$

Combine like terms,

$= a^{2} + 17 a + 70$

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