Question

aflati suma a+b stiind ca m+n=14 si am +bm +an+bn=126 unde a,b,msi n sunt numere naturale nenule

Answer 1

am + bm + an + bn = m ( a + b) + n (a +b) = (a + b ) ( m+n ) => (a +b ) = 126 : (m+n )

a + b = 126 : 14

a + b = 9