Asked by Anonymous
the sum of two numbers is 42. their product is 185. what are the two numbers?
Answers
Answered by
Alexa
37 and 5
Answered by
Reiny
x+y = 42 ---> y = 42-x
xy = 185
x(42-x) = 185
42x - x^2 - 185 = 0
x^2 - 42x + 185 = 0
x^2 - 42x <b>+441</b> = -185<b>+441</b>
(x-21)^2 = 256
x-21 = ± √256
x = 21 ±16 = 37 or 5
if one number is 37 , the other is 5
or one is 5 , the other is 37
check:
sum = 37+5 = 42
product = 37x5 = 185
xy = 185
x(42-x) = 185
42x - x^2 - 185 = 0
x^2 - 42x + 185 = 0
x^2 - 42x <b>+441</b> = -185<b>+441</b>
(x-21)^2 = 256
x-21 = ± √256
x = 21 ±16 = 37 or 5
if one number is 37 , the other is 5
or one is 5 , the other is 37
check:
sum = 37+5 = 42
product = 37x5 = 185
Answered by
noah
9b+21
There are no AI answers yet. The ability to request AI answers is coming soon!