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

if you no that 4x5=20 how can you use the commutative property to find 4×5
10 ejemplos de sinalefa
What did the Nile leave behind when it flooded? A. loess B. rich soil C. large rocks D. sand
predict the miles traveled in 5 hours at a rate of 189 miles in 3 hours
How did constantinople's church of hagia sophia (ayasofya) demonstrate how the byzantine empire blended with the old roman empire?
The feeling of fervent devotion toward one’s nation above all others is known as?
what is the sum of 1/7 and 2/7
Theos mom bought an eight pack of juice boxes at the store for $4 find the unit rate for the juice boxes
A rectangle has a length of 10 inches and a perimeter of 48 inches. Which equation could be used to find the width of the rectangle? a. 48 = 10w b. 48 = 20 – 2w
1+i is a zero of f(x)=x^4-2x^3-x^2+6x-6