torimcgee314 torimcgee314
  • 06-10-2021
  • Mathematics
contestada

Solve 3x^2-x=10
A:x=2 and x=-15
B:x=-5 and x=2/3
C:x=-5/3 and x=2
D:x=-3 and x=10

Respuesta :

hannguyengdg
hannguyengdg hannguyengdg
  • 06-10-2021

Answer:

C

Step-by-step explanation:

∆=b^2-4a*c=1-4*3*(-10)=121>0 có 2x

x1=-b+sprt∆/2a=1+sprt121/2*3=2

x2=-b-sprt∆/2a=1-sprt121/2*3=-5/3

Answer Link

Otras preguntas

From a DNA structure standpoint, what causes physical variations in different people?
Based on the audio, what will he most likely be preparing? 1: Some cookies 2: An omelet 3: A sandwich 4: Some plantains Link: https://www.mediafire.com/file/wzz
Find the rate of change The table represents some points on the graph of a linear function. What is the rate of change of y with respect to x for this function?
Sediments that have been cemented together become igneous rock. True or False?
What is unique to only skeletal muscle? What’s the correct answer answer asap for brainlist
Please help I’ll mark you as brainliest if correct !!
hello, can someone please help me with this problem ​
In this chapter, you read a Diversity & Dominance feature, "The Secret History of the Mongols," that offers an account of Chinggis Khan written by Mongols a
A certain species of fish require 1.5 cubic feet of water per fish to maintain a healthy environment. Find the maximum number of fish you could put in a tank me
What is the hajj and why is it important to Muslims?