Question

The product of two consecutive integers is 420 which quadratic equation can be used to find x the lesser number

Answer 1

Explanation:

If the smallest number is 'x', then the other number = x +1

x*(x+1)= 420

Use distributive property

x*x + x*1 = 420

x² + x - 420 =0 ------> this is the required quadratic equation.