one no. is 7 more than another and its square is 77 more than the square of the smaller number.What are the number?
Answers
Answered by
6
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
Answered by
7
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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