what two numbers when multiplied equal 12 and when added equal 16

Answer 1

xy=12

x+y=16

x(16-x)=12

x² - 16x + 12 = 0

The quadratic formula gives 8±2*sqrt(13)

Answer 2

I said that the two numbers are x and y

so x y =12

x + y =16

so y = 16- x

substituting than

x ( 16 -x ) = 12

16 x -x^2 = 12

x^2 -16 x +12 =0

doing the quadratic I got 8 + or - 7.21 I then got .79 for one variable and 15.21 for the other