xpnjz5nbcw xpnjz5nbcw

23-08-2021
Mathematics

contestada

Select all solutions to the equation (2x — 4)(x + 5) = 0.

x = -1/2

x = 1/2

x = -2

x = 2

x = -5

x = 5

Respuesta :

mahrezrokaya mahrezrokaya

24-08-2021

Answer:

(2x-4) (x+5)=0

2x(x+5) -4(x+5)=0

2x^2+10x-4x-20=0

2x^2+6x-20=0

x^2+3x-10=0 ( Taking common of 2 )

x^2+(5-2)x-10=0 • (3=(5-2)x)

x^2+5x-2x-10=0

x(x+5)-2(x-5) =0 • Taking common

(x+5)(x-2) =0

so x=-5 or x=2.

Answer Link

Otras preguntas

Geologists can use sedimentary rock to learn about climate in the past.

"noon on a monday the temperature in degrees (F) was -4°F.... at noon on Tuesday the temperature was 6 degrees higher, what is the temperature on Tuesday at noo

• analyze the political, economic, and social concerns of the 1990-present

Hardy's plant grows rapidly. It grows by 10cm every 2 years. How much taller will hardy's plant be in 5 years?

_________ was the engineer in charge of building the canal through Panama for the French. a. Hay Bunau b. Philippe Bunau-Varilla c. Leonard Wood d. Emilio A

how do i find the area of a semicircle

Fiber is not easily digested by the body. a. True b. False

The process in which rocks are formed, change, and broken down is called

Who has the best overall health? a person who is not ill and is physically active a person who lives longer than his or her grandparents a person who balances s

Which lines in this excerpt from Macbeth act 1 scene 5 show that lady Macbeth doubts macbeths willpower