One number is 44 more than twice another. Their product is 44 more than twice their sum. Find the numbers x and y. (Assume x < y.)
m = 44+2n mn = 44+2(m+n)
y=44+2x y=2(x+y)+44 Solve system using substitution or elimination
mn = 44 +2m+2n ; yet 2n = m-44 mn = 44 +2m +2m -88 mn = -44 +4m 44 = mn +4m 44 = m(n+4) m = 44/(n+4) ; n!= -4
m = 44+2n = 44/(n+4) (44+2n)(n+4) = 44 44n +176 +2n^2 +8n = 44 2n^2 +52n +176-44 = 0 2n^2 +52n +132 = 0
2(n^2 +26n + 66) = 0 n^2 +26 = -66 (n+13) = sqrt(-66 + 169) n = -13 +- sqrt(103)
htats prolly wrong lol
it is. i know there's no square root for any of the problems. this one is killing me! haha
one of the numbers is 0.
m = 44+2n mn = 44+2(m+n) these are good equations right?
if one of the numbers is 0; then their product is 0
y=44+2x y=2(x+y)+44 The solution to this system is x=-22 y=0
how is y a product in that?
-22 is a good solution, I just cant see how you interpret the information..
we'll skip that one. lol
Join our real-time social learning platform and learn together with your friends!