ashtank33
ashtank33
15-06-2020
Mathematics
contestada
Solve x2+4x-7=0 by completing the square
Respuesta :
mhanifa
mhanifa
15-06-2020
Answer:
-2- √11
-2+√11
Step-by-step explanation:
x²+4x-7=0
x²+4x+4- 11=0
(x+2)²-11=0
(x+2+√11)(x+2-√11)=0
x+2+√11=0 ⇒
x= -2- √11
x+2 -√11=0 ⇒
x= -2+√11
Answer Link
Ogulab21
Ogulab21
15-06-2020
(X+2)^2 - 2 - 7
(X+2+3) (x+2-3)
Answer Link
VER TODAS LAS RESPUESTAS ( 98+ )
Otras preguntas
You are trying to determine if a certain dice is fair (has a uniform distribution). You roll the dice 42 times and record the outcomes in the table below. Find
i need help with this
(Renart est tombé dans une cuve de teinture jaune. Le teinturier arrive.) Renart dit au teinturier: « C'était pour remuer la teinture; c'est la mode de Paris e
If you don't fix the car it will continue to lick oil what type of clause is these
with example. [1+4]Describe the current cybersecurity challenges faced by Nepal.Discuss any two initiatives or strategies taken by the governmentto enhance cybe
In lecture last week and discussion this week, you took some time to become familiar with and apply three career development theories: Holland’s Theory of Vocat
New Imperialism largely focused on colonies in _ and Asia.
You have the following data set: 10, 14, 12, 16, 13, 14, 16, 10, 12, and 10Question 4For the given data set, what value would be included on the relative freque
49. ¿Cuál de los siguientes no es uno de los pilares sobre los que se fundó la Unión Europea según el Tratadode Maastricht?a) Comunidad Europea del Carbón y del
m(-m+2) substitute m = 1
