Question

The product of two numbers is 48. The first number is negative, and the second number is four more than twice the first number. What are the two numbers?

Answer 1

First number is a and second one is 2a+4
a(2a+4)=48
a(a+2)=24
a^2+2a-24=0
(a+6)(a-4)=0
the question says a is negative so a=-6 b=-8