sarahpatane sarahpatane
  • 03-04-2019
  • Mathematics
contestada

I need to solve using the quadratic formula 2r^2+6r-15=0. PLEASE HELP!!! And I would like work shown so I could see how you get the answer. Thanks!

Respuesta :

kadenli223
kadenli223 kadenli223
  • 03-04-2019

2r^2+6r-15=0

cannot be factored so use quadratic formula

(-6+- √156)/4     Plug in a use a calculator

(-3±√39)/2      simplify the radical and rationalize the fraction

Answer Link

Otras preguntas

How many grandparents have my grandparents? who can solve it is very good on maths! it is just a lpgic problem! i know the answer :)
Why does Louis XIV want to expand France's border?
How many miles can you get on one tank of gas if your tank holds 18 gallons and you get 22 miles per gallon?
what is the kingdom and phylum of a euglena protest?
China, Korea, and Japan share cultural similarities in part due to their (1) clashes with Russian imperialists (2) shared river systems (3) contacts through tra
What is 1997 from 2014????????????
A circular pool is ten feet in diameter and five feet deep. What is its volume, in cubic feet?
How many miles can you get on one tank of gas if your tank holds 18 gallons and you get 22 miles per gallon?
What are abiotic factors of the enviroment lynx
3x+y=4 2x+y=5 solve using linear combination