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 expression 5(3 + 7) is a sum. product. difference.

sabendo que x2 + y2=74 e que xy=35, calcule valor de (x - y2)2

Which of these objects can be best be used to describe elastic potential energy A) see say (teeter totter) B) hammer and nail C) a spring D) a door jam

If n is the square root of a positive integer, and is divisible by both 2 and 6, what is the least possible value of n?

why did the ancient roman government begin the bread and circuses program to keep the poor fed and entertained

what is an ecosystem found in warm, clear salt water?

How often were slaves freed in colonial America

What potential increase vac must an electron be accelerated through if the most energetic photon it can emit will scatter off of a stationary electron at an ang

Civil Disobedience Part 1 Most people remember Gandhi and Dr. Martin Luther King, Jr. as reformers who practiced non-violent forms of protest and advocacy. Bo

A pet store is selling a new dog collar for $12.00. If there is a sales tax of 10 percent, what is the actual cost of the collar