Question

Discuss the nature the following quadratic equation.

1. x-9x+20=0

2. x²-4x+4=0

pls send me a answer​

Answer 1

x

=

−

9

±

1

2

The final answer is the combination of both solutions.

x

=

−

4

,

−

5

Answer 2

To find the x-coordinate of the vertex of the parabola, we may use the formula x = -b/2a

x = -(-9)/2(1) = 9/2

By applying x = 9/2, we get the value of y.

y = (9/2)2 - 9(9/2) + 20

y = (81/4) - (81/2) + 20

y = (81 - 162 + 80)/4 = -1/4

hope it helps you