The sum of two numbers is 5 and their product is 25. Find a quadratic expression that has these two numbers as roots assuming that the coefficient in front of the highest power of the variable is 1.

Answer :

Answer:

[tex]x^2-5x + 25 = 0[/tex]

Step-by-step explanation:

Let a, b are two numbers.

Given:

Sum of the two numbers is 5.

[tex]a+b=5[/tex]

And its product is 25.

[tex]a\times b =25[/tex]

We need to find the quadratic equation using given condition.

Solution:

A quadratic equation can be written as:

[tex]x^2-(sum\ of\ the\ roots)x + (product\ of\ the\ roots) = 0[/tex]

[tex]x^2-(a+b)x + (a\times b) = 0[/tex] -------------(1)

Substitute [tex]a+b=5[/tex] and [tex]a\times b =25[/tex] in equation 1.

[tex]x^2-(5)x + (25) = 0[/tex]

[tex]x^2-5x + 25 = 0[/tex]

Therefore, Required quadratic expression

[tex]x^2-5x + 25 = 0[/tex]