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

What are the purposes of and limits on the right to keep and bear arms?
if the length of an arc is 12π inches and the radius of the circle us 10 inches, what is the measure of the arc?
A mutation caused a phenotypic change in an organisms offspring. The mutation most likely occurred in which type of cell from the parent
how do I solve: for the matrix A find -A and A+ (-A), A=[3 -8] bottom part[-6 5]
Need this geometry answer
describe what happens during prophase I and metaphase I and how these phases play an important role in the genetic diversity of the daughter cells produced
When answering interview questions, feel free to openly admit some weaknesses to show that you are human. a. true b. false?
find the product of 9x^2+2x-7
PLZ help which inequality does the graph represent
Explain the difference between a meteoroid, meteor, meteorite. Which one would you most likely see of the surface of Earth