Chapter 7: Q8. (page 459)

Choose a term from the Key Vocabulary list above that best describes the given expression.
$(x + 2) (x - 5) = x^{2} - 3 x - 10$

Short Answer

Expert verified

The given expression can be best described as theFOIL method.

Step by step solution

Step 1. Define an expression.

A mathematical expression is a combinations of numbers and variables ordered with mathematical operations.

Step 2. Define FOIL method.

FOIL method is used to multiply two binomials.

$(a + b) (c + d) = a c + a d + b c + b d$

Step 3. Write the best description for the expression, x+2x−5=x2−3x−10.

Observe the expression, $(x + 2) (x - 5) = x^{2} - 3 x - 10$ .

role="math" localid="1647723952175" $(x + 2) (x - 5) = (x) (x) + (x) (- 5) + (2) (x) + (2) (- 5) = x^{2} - 5 x + 2 x - 10 = x^{2} - 3 x - 10$

The expression, $(x + 2) (x - 5) = x^{2} - 3 x - 10$ involves the product of two binomials $(x + 2)$ and $(x - 5)$ by using the FOIL method.

Therefore the given expression can be best described as the FOIL method.

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Choose a term from the Key Vocabulary list above that best describes the given expression.
$(x + 2) (x - 5) = x^{2} - 3 x - 10$

Short Answer

Step by step solution

Step 1. Define an expression.

Step 2. Define FOIL method.

Step 3. Write the best description for the expression, x+2x−5=x2−3x−10.

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Choose a term from the Key Vocabulary list above that best describes the given expression.x+2x−5=x2−3x−10

Short Answer

Step by step solution

Step 1. Define an expression.

Step 2. Define FOIL method.

Step 3. Write the best description for the expression, x+2x−5=x2−3x−10.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Calculus

Decision Maths

Statistics

Applied Mathematics

Logic and Functions

Geometry

Study anywhere. Anytime. Across all devices.

Choose a term from the Key Vocabulary list above that best describes the given expression.
$(x + 2) (x - 5) = x^{2} - 3 x - 10$