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

PLSSSSS HELP IF YOU TRULY KNOW THISSSS

When assessing a client for cyanosis, which areas are most appropriate for the nurse to assess? select all that apply. A) pupils ears B) sternum C) lipsD) cheek

The physician writes a prescription for a 4 oz of triamcinolone topical 0.1 ream. approximately how many grams of cream should the pharmacy technician prepare f

Which of the following would not be a part of responsible alcohol sales and service? a. actively marketing food. b. checking up on customers. c. keeping an inci

When using dextran as a fluid replacement therapy for a patient who is in a state of shock, which factors would the nurse consider, including the load capacity

what social and cultural divisions exist between students at aberdeen? In other words: who becomes friends with whom? Explain the different groups and how these

To minimize quality risks, which of the following would be least likely to be outsourced to less-developed countries? A) rubber processing B) repetitive assem

How is nutritional intake calculated? by estimating the percentage of food eaten by guessing the ounces of fluids given by adding the fluids and the foods toget

Calculate the pH at 25°C of 217.0 mL of a buffer solution that is 0.210 M NH₄Cl and 0.210 M NH₃ before and after the addition of 1.80 mL of 6.0 M HNO3.

How do you adjust your evening activities to promote relaxation and reduce anxiety before bed?