Question

help I am in trouble​

Answer 1

x is equal to 2 and y is eyal to 5

Answer 2

Step-by-step explanation:

first possibility

$first \: possibility \: \\ hcf(x \: y) + lcm(x \: y) = 1 + 90 \\ which \: means \: by \: comparing \: lhs \: rhs \: we \: get \: \\ hcf(x \: y) = 1 \: so \: they \: are \: coprime \: \\ and \: lcm(x \: y) = 90 \: if \: hcf \: of \: x \: y \: = 1 \: then \: lcm = x \times y \\ so \: possible \: values \: of \: (x \: y) = ((1 \: and\: 90) \: (18 \: and\: 5)(9 \: and \: 10)(10 \: and \: 9)(5 \: and \: 18)(90 \: and \: 1)(2 \: and \: 45)(45 \: and \: 2)$

these are the only possibilities

lcm of 2 numbers will not be 1