Riya is asked to find two numbers whose sum is 9 and product is 20. She writes a quadratic with these numbers as roots and solves it by factorisation. Which are the two numbers?

Question

Accepted Answer

4 and 5. The numbers are roots of x^2 - 9x + 20 = (x - 4)(x - 5) = 0, giving 4 and 5 (sum 9, product 20).

Riya is asked to find two numbers whose sum is 9 and product is 20. She writes a quadratic with these numbers as roots and solves it by factorisation.
Which are the two numbers?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Roots by Factorisation practice

Riya is asked to find two numbers whose sum is 9 and product is 20. She writes a quadratic with these numbers as roots and solves it by factorisation.Which are the two numbers?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Roots by Factorisation practice

Riya is asked to find two numbers whose sum is 9 and product is 20. She writes a quadratic with these numbers as roots and solves it by factorisation.
Which are the two numbers?