Question

Matematika poltekkes tolong dibantu ya + penjelasan​

Answer 1

(x'-1+y'-1)(xy'-1-x'-1y)/(x+y)'-1(x'-2-y'-2)
(x+y)'1(x'-1+y'-1)(xy'-1+x'1y)/(x'-2-y'-2)
(x+y)(x'2-y'2)(y)/(x'1+y'1)(xy'1+x'1)
(-1'1+2'1)(-1'2-2'2)(2)/(-1'1+2'1)(-1.2'1+(-1)
(1)(-3)(2)/(1)(-3)
-6/-3=2