Question

construct a word problem on quadratic equation such that one of the roots is 20 ​

Answer 1

Answer:

If the difference between the square of a number and 10 times that number is 200. Find the numbers.

Explanation:

Let the number be x

According to question:

x^2-10x=200

x^2 - 10x - 200 = 0

x^2 - 20x + 10x - 200 = 0

x ( x - 20 ) + 10 ( x - 20 ) = 0

(x - 20) ( x + 10) = 0

x = 20 or -10