Answered

the sum of two numbers is 25 and their products is 156. What are the two numbers?

Sagot :

Halaoid
13 and 12
because if you will going to add them the sum or answer is 25
if you will going to multiply them the product or answer is 156...
x + y = 25
y = 25-x

Let first number x
      second number y  or  25-x

Equation:
(x) (25-x) = 156
25x - x² = 156

Equate to 0:
0= x² -24x + 156

Solve by factoring:
((x-13) (x-12) = 0

x-13 = 0             x-12 = 0
x = 13                x = 12

The two numbers are 13 and 12.

To check:  
    13 + 12 = 25
     (13) (12) =156