SmartyCakes SmartyCakes

16-05-2017
Mathematics

contestada

4x+30-2x^2=0 please help i dont know how to do this

Respuesta :

apologiabiology apologiabiology

16-05-2017

undistribute the -2
-2(x^2-2x-15)=0
factor
what2 numbres multlpy to get -15 and add to get -2
-5 and 3
-2(x-5)(x+3)=0
set to zero

x-5=0
x=5

x+3=0
x=-3

x=-3 or 5

Answer Link

Otras preguntas

Who was forced to assume sole responsibility for world war 1 under the treaty of versailles

They are a pencils and a package pillion how many packages will be needed for 28 children if each child gets 4 the pencil

What is the ordered pair for the relation y= x2 if x=5?

Which of the following is an example of a shield volcano? A) Kilauea B) Parícutin C) Himalayas D) Mount Saint Helens

The largest indigenous group in Chile today is the ______ A.) Aymara B.) Rapa Nui C.) Quechua D.) Mapuche

Among the Maasai, a tribal culture in southwestern Kenya, an American doctor introduced a hand-washing program to help the incidence of childhood diarrhea, whic

What are some ways in which you can keep the horizon straight

What is surprising about katniss`s score?

What is a function of the cardiorespiratory system? A. the exchange of gases throughout the body B. Provides support and protection of the soft tissues that mak

did gladiators have fights out at sea