Having a few issues with:
k(k-m) = 12
k(k+m) = 60
Not sure how to do this but will try, so:
expand: k^2 -km = 12 and k^2 + km = 60. So adjusting one equation to get a substitution for K^2 : k^2 = 12+km, so:
(12+km)(12+km) - km -12 = 0
km^2 + 23km + 132 = 0 and this (if I did it correctly) factorises to (mk+11)(mk+12) but now having mk =-11 and mk =-12 doesn't help.
Can someone nudge me in a better direction? Thanks
k(k-m) = 12
k(k+m) = 60
Not sure how to do this but will try, so:
expand: k^2 -km = 12 and k^2 + km = 60. So adjusting one equation to get a substitution for K^2 : k^2 = 12+km, so:
(12+km)(12+km) - km -12 = 0
km^2 + 23km + 132 = 0 and this (if I did it correctly) factorises to (mk+11)(mk+12) but now having mk =-11 and mk =-12 doesn't help.
Can someone nudge me in a better direction? Thanks