lracerict909 lracerict909

04-02-2021
Mathematics

contestada

Which expression is equivalent to 4x2 – 49?
A). (2x – 7)2
B). (x + 7)(4x – 7)
C). (2x + 7)(2x – 7)
D). (2x + 7)2

Respuesta :

PiaDeveau PiaDeveau

09-02-2021

Answer:

(2x + 7)(2x - 7)

Step-by-step explanation:

Given:

4x² - 49

Find:

Factories

Computation:

4x² - 49

Using Identity

⇒ a² - b² = (a + b)(a - b)

⇒ 4x² - 49

⇒ (2x)² - (7)²

(2x + 7)(2x - 7)

Answer Link

Otras preguntas

what are some reasons for limiting authority

Which of the following categories includes the most distantly related organisms? (A) family (B) species (C) class (D) genus (E) order

How can b^2+9b+14 be re-written?1) (b+7) (b-7)2) (b-7) (b-2)3) (b+7) (b-2)4) (b+7) (b+2)

7x+3y=22 4y=20 I need to know how to write this equation out with the answer

Which of the following molecules has polar bonds but is a nonpolar molecule? a. H₂ b. H₂O c. NH₃ d. NaCl e. CO₂ Can anyone explain this one?

what are some reasons for limiting authority

why did the volcano explode

1. What is the respiratory structure of a millipede? A. book lungs B. tracheal tube C. gill slits 2. what is the respiratory structure of a spider? A. gills B.

Many colonial people volunteered to fight for the Allied forces because they hoped their service would win their colony's ____

What is 68 divided by the square root of 4