Question

one no. is 7 more than another and its square is 77 more than the square of the smaller number.What are the number?
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Answer 1

Let X,X+7 be the two numbersand also given that

[X+7]-X²=77

X²+14X+49-X²=77

14X=28

X=2

The numbers are 2,9

Answer 2

Step-by-step explanation:

Let one number be x

other no =x+7

(x+7)² -77 =x²

x²+49+14x-77=x²

x²-28+14x=x²

x²-x²+14x = 28

14x= 28

x= 2

other no = x+7 =2+7 =9

the numbers are 2 and 9

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