Find two consecutive integers such that the sum of their square is 61
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Answered by
1
x²+(x+1)²=61
x²+x²+2x+1=61
2x²+2x+1-61=0
2x²+2x-60=0
x²+x-30=0
(x+6)(x-5)=0
x=-6,5
x²=-6²=36
(x+1)²=7²=49
x²=5²=25
(x+1)²=(5+1)²=6²=36
hope it helps..
Answered by
13
We are given that the sum of the squares of two consecutive numbers is equal to 61. Let the numbers be x and x+1.
So x^2 + (x+1)^2 = 61
=> x^2 + x^2 + 1 + 2x = 61
=> 2x^2 + 2x - 60 = 0
=> x^2 + x - 30 =0
=> x^2 + 6x - 5x - 30 =0
=> x(x+6) -5(x+6) =0
=>(x-5)*(x+6) =0
We can have x = 5 and x = -6
Therefore the numbers can be 5 and 6 or -6 and -5.
The required result is (5, 6) and (-6,-5).
Hope It Will Help.❤️
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