Quadratic equations

4x2 - 16 = 0

2x2 = 16

x2 + 5 = 0

x2 + 4x - 6 = 0 (Solve by completing the square)

x2 - 25 = 0

3x2 = -9x

2x2 - 4x + 1 = 0

3x2 + 2x = 7

x2 + 8x + 9 = -7

Question

Quadratic equations

4x2 - 16 = 0

2x2 = 16

x2 + 5 = 0

x2 + 4x - 6 = 0 (Solve by completing the square)

x2 - 25 = 0

3x2 = -9x

2x2 - 4x + 1 = 0

3x2 + 2x = 7

x2 + 8x + 9 = -7

dan815 · Answer

which one u want to solve?

dan815 · Answer

do u want to know how to complete the square?

dan815 · Answer

x2 + 4x - 6 = 0
x2 + 4x  = 6
x2 + 4x +4 = 6 +4
(x+2)(x+2)=10
(x+2)^2=10
x=$$sqrt10 - 2$$

dan815 · Answer

look up youtube video on complete the square if u dont know already

anonymous · Answer

there all seperate equations

dan815 · Answer

and?