1year ago a man was 13 times as old as his son. Now his age is equal to the cube of his son's age. Find their present age.
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Answer:
x=27,y=3
Step-by-step explanation:
x-1=13(y-1)
x=y3
x=13y-12
y3-13y+12=0
put y=3
27-39+13=0
y=3
x=27
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