Seudónimo Seudónimo
  • 08-03-2021
  • Mathematics
contestada

find the discriminant of x²+6x+9=0 ​

Respuesta :

Аноним Аноним
  • 08-03-2021

Answer:

x²+6x+9=0

x²+3x+3x+9=0

x(x+3)+3(x+3)=0

(x+3)(x+3)=0

either

x+3=0

x=-3

or

x+3=0

x=-3

Step-by-step explanation:

next method

x²+6x+9=0

x²+2×x×3+3²=0

it is in formula of (x+y)²

(x+3)²=0

x+3=√0

x+3=0

x=-3

Answer Link

Otras preguntas

1) - 2a - 3 = 8 - 8a
What is 3 1/6 - 2 5/6 =??
Alex is drawing rectangles with different areas on a centimetre grid he can draw 3 different rectangles with an area of 12cmsquared a) How many different rectan
Why are there two versions of Sojourner’s speech?
Solve for x and y. A. x = 13.3 y= 16.7 B. x = 13.3. y = 12.5 C. x = 7.5, y = 16.7 D. x = 7.5. y= 12.5
identify 10 acres of diamond resources that you have available to you​
Which statement is true about exterior angles easy
what is the value of x ? A. 85 B. 105 C. 75 D. 95
Find the gradient of the line 2y=-6x+1 =
Use the diagram below to answer the question photosynthesis cellular respiration energy in energy in energy out energy out