Question

a
b
с
Activity : Complete the following table
Quadratic General form
Equation
x² - 4= 0 x² + 0x - 4 = 0
y2 = 2y - 7
-
1
0
-4
x² + 2x = 0
$$$ Solved Examples $$$​

Answer 1

Answer:

Step-by-step explanation:

x

2

−4x+2=0

a=1,b=−4,c=2

x=

2a

−b±

b

2

−4ac

​

​

x=

2(1)

−(−4)±

(−4)

2

−4(1)(2)

​

​

x=

2

4±

16−8

​

​

x=

2

4±

8

​

​

x=

2

4±2

2

=

2

2(2±

2

x=2±

2