ashtank33
ashtank33 ashtank33
  • 15-06-2020
  • Mathematics
contestada

Solve x2+4x-7=0 by completing the square

Respuesta :

mhanifa
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

Otras preguntas

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! The Roosevelt Corollary to the Monroe Doctrine called for A) investing in the economic development of Latin
. Find the height of a triangle whose base is 50 cm and whose area is 500 cm².
22 POINTS *True or False * 1. The Amazon forest is bigger than Europe ( ) 2. It contains most of the world’s trees ( ) 3. Deforestation leads to climate cha
A __________is a buddhist diagram of a cosmic realm.
This box can be packed with 48 unit cubes. The edge length of each unit cube is 1 meter. What is the volume of the box?
Find the perimeter and area of a rectangle 20 centimeters long and 12 centimeters wide
Which functions can you use to find the square root of a number, and to find the current date, respectively? 1. ____ function returns the square root of a given
When serving hot food it should never reach a temperature below blank
QUESTION 3 We can say that something is socially constructed when it occurs through:
solve for x in the equation x2 + 10 + 12 = 36