Answer:
(a)
(b)
(c)
(d)
Step-by-step explanation:
we can simplify and verify each equations
(a)
we can find factors of 18 and 36
now, we can cancel it
so,
(b)
we know that 13 can not be factored
so,
(c)
we know that 3 and 5 can not be factored
so,
(d)
we can see that second term has 16 in the bottom
we can get 16 in the bottom , if we multiply top and bottom by 2
so,