marichuysandoval marichuysandoval
  • 02-11-2020
  • Mathematics
contestada

Solve this quadratic: 2x^2 – 5x – 7 = 0

Respuesta :

Vitapinkk Vitapinkk
  • 02-11-2020

Answer:

Step-by-step explanation:

2x^2-5x-7=0

2x^2+2x-7x-7=0

2x(x+1)-7(x+1)=0

(x+1)(2x-7)=0

  • X+1=0⇒x=-1
  • 2x-7=0⇒x=7/2
Answer Link

Otras preguntas

How were christian and muslim states governed in the early middle ages?
How do cats communicate?
Which of the following is an example of maintaining academic integrity? A. Using graphs, tables, or diagrams that someone else created, without citing
Which of the following minerals is beneficial to plants? a. Nitrogen c. Aluminum b. Mercury d. Limestone
Dimensional analysis: 1.35 kilometers per second= ? miles per hour
In assessing the internal validity of an intervention, we ________.
Glands that have lost contact with a body surface are called ____________ , and secrete their products into capillary rich interstitial spaces for quick distri
If i was born in 2002 how old will i be in 2130
William earns a base salary of $150.00 every week with an additional 12%, commission on everything he sells. If William sold $6050.00 worth of items last week,
The Paleolithic, Mesolithic, and Neolithic eras occurred during which age?