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

The founder of the "Young Italy" movement was
in ____ mode, as you type a character, excel inserts the character and moves all characters to the right of the typed character one position to the right.
what is the importance of education
which of the following hormones has a different effect when it is released in males instead of females?
the seven last words of christ
The cell transport process that is opposite of the three pictured is called a. endocytosis. b. osmosis. c. exocytosis. d. phagocytosis.
how many continents are there
examples of rational numbers
for any given gene, what ultimately determines which dna strand serves as the template strand?
2x²+10x=0 by using any method