Question 195927: Three consecutive even integers are such that the square of the third is 100 more than the square of the second. Find the three integers.
Answer by nerdybill(7384) (Show Source):
You can put this solution on YOUR website! Three consecutive even integers are such that the square of the third is 100 more than the square of the second. Find the three integers.
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Let x = first consecutive even integer
then
x+2 = second consecutive even integer
x+4 = third consecutive even integer
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(x+4)^2 = (x+2)^2 + 100
(x+4)(x+4) = (x+2)(x+2) + 100
x^2+8x+16 = x^2+4x+4 + 100
x^2+8x+16 = x^2+4x+104
8x+16 = 4x+104
4x+16 = 104
4x = 88
x = 22
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The three integers: 22, 24, 26
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