Question

O conjunto F (1,2) (X, 3)(5,8)(6,4), e uma função AxB determine o valor de X

Answer 1

$1,2\\x,3\\5,8\\6,4\\1,2\\\\3+8x+20+12=0\\-2x-15-48-4=0\\\\6x+35-67=0\\6x-30=0\\6x=30\\x= \frac{30}{6} \\x= 5$

Espero ter ajudado!