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

In what ways were the causes and effects of the war in Korea and Vietnam similar

Which word can describe a covered walkway in a building? A. holocaust B. pandemonium C. cloister D. inception

C. Peter D. Susan Please I need help

which nation lost the most territory as a resukt of ww1

The type of instrument that can show detailed images of the internal structure of the cell is the A)transmission electron microscope. B) scanning electron mic

If Mercury's mass is 3 × 10^23 kilograms, and Saturn's mass is 6 × 10^26 kilograms, which statement is true? A) There is no way to compare the masses. B) Mercur

Help me pls!! Help me!

Describe how you would estimate the square root of a number that is not a perfect square without using a calculator.

Why might Abkhazian's tourist industry decline in the 1990s

prove that the production of heat of two resistors connected in parallel is inversely proportional to the resistances