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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 6.73. (page 718)

Multiply: $(a + 7) (a - b)$

Short Answer

Expert verified

The required answer is $a^{2} - a b + 7 a - 7 b$ .

Step by step solution

01

Step 1. Given information.

The given expression is:

$(a + 7) (a - b)$

We have to multiply the given expression.

02

Step 2. Use the distributive property to multiply.

$(a + 7) (a - b)$

Now distribute,

$= a 路 (a - b) + 7 路 (a - b)$

distribute again,

$= a^{2} - a b + 7 a - 7 b$

There are no like terms to combine.

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Most popular questions from this chapter

In the following exercises, multiply the following binomials using:

鈸� the Distributive Property

鈸� the FOIL method

鈸� the Vertical Method.

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