Question

10POINTSwhich quadratic function has the largest positive solution x^2-25=0

Answer 1

$x^2-9 = 160$ has the largest positive solution

Step-by-step explanation:

We can observe the given quadratic equations one by one.

We can see that the given quadratic equations are of the form

$x^2 = c^2$

OR somehow simplify to the given form

The solution is:

x = ±c

So,

Option 1:

$x^2-25 = 0\\x^2 = 25\\\sqrt{x^2} = \sqrt{25}\\x = 5\ \ , x=-5$

Option 2:

$x^2+10=154\\x^2+10-10 = 154-10\\x^2 = 144\\\sqrt{x^2} = \sqrt{144}\\x = 12\ \ \ , x = -12$

Option 3:

$x^2-9=160\\x^2-9+9 = 160+9\\x^2 = 169\\\sqrt{x^2} = \sqrt{169}\\x = 13\ \ \ , x = -13$

Option 4:

$x^2+49=50\\x^2+49-49 = 50-49\\x^2 = 1\\\sqrt{x^2}= \sqrt{1}\\x = 1\ \ \ , x= -1$

We can clearly see that:

$x^2-9 = 160$ has the largest positive solution

Keywords: Quadratic equation, variables

Learn more about quadratic equation at:

• brainly.com/question/9967230
• brainly.com/question/9961057

#LearnwithBrainly