Question

Quiz: The Discriminant and Modeling Data 7:Solving Quadratic Equations

Answer 1

For this case we must find the solution of the following quadratic equation:

$x ^ 2-10x + 25 = 0$

Where:

$a = 1\\b = -10\\c = 25$

Then, the solution is given by:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Substituting the values:

$x = \frac {- (- 10) \pm \sqrt {(- 10) ^ 2-4 (1) (25)}} {2 (1)}\\x = \frac {10 \pm \sqrt {100-100}} {2}\\x = \frac {10 \pm \sqrt {0}} {2}\\x = \frac {10} {2} = 5$

Thus, we have two equal real roots.

$x_ {1} = 5\\x_ {2} = 5$

Answer:

We have two equal real roots.

Answer 2

Answer:

cannot be determined

Step-by-step explanation:

i tried 1,0,2 dont work