the difference of squares of two numbers is 204 .the square of the smaller number is 4 less than 10 times the larger number. find the two numbers.
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Answer:
x = 20, x = –10 (rejected) 1/2
y = 14
Step-by-step explanation:
Let the numbers are x and (x > y)
x2
– y2 = 204 …(i) 1
y2 = 10x – 4 …(ii) 1
By (i) and (ii)
x2 – 10x + 4 – 204 = 0
x2 – 10x + 200 = 0
(x – 20) (x + 10) = 0
x = 20, x = –10 (rejected)
y = 14
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