(1) with y (3 y + 7) = x, x surely is a multiple of y. Sufficientabhasjha wrote:If x and y are integers greater than 1, is x a multiple of y?
(1) 3y^2+7y=x
(2) X^2-X is a multiple of y.
(1) (3y+7)*y = xabhasjha wrote:If x and y are integers greater than 1, is x a multiple of y?
(1) 3y^2+7y=x
(2) X^2-X is a multiple of y.
What's the difference in a factor and a multiple?ajith wrote:(1) (3y+7)*y = xabhasjha wrote:If x and y are integers greater than 1, is x a multiple of y?
(1) 3y^2+7y=x
(2) X^2-X is a multiple of y.
say y=kx
(3kx+7)*kx = x
(3k+7)*k = 1
only possible if 3k+1 = k =1 which is not possible
Sufficient
2)y = k * (x-1)*x
Sufficient to conclude that x is a multiple of y
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Oops a mistake in my answer - Thanks Sanjusanju09 wrote: What's the difference in a factor and a multiple?
