Ch1. Quadratic equation in one unknown (I)

The square of the sum of two consecutive positive even integers is greater than the sum of their squares by 48. Find the two integers

Write down the roots of (2x-1)(x+4)=0

• x=-1/2 or x=-4

• x=1/2 or x = 4

• x=-4

• x=-4 or x=1/2