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iragen [17]
4 years ago
12

\frac{x}{y} +\frac{3}{y} =\frac{?}{y}

Mathematics
1 answer:
denpristay [2]4 years ago
8 0
\bf \cfrac{x}{y}+\cfrac{3}{y}\impliedby \stackrel{LCD}{y}\implies \cfrac{x+3}{y}
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it has to be quadratic with an x^2 since it has 2 roots. So we will write basic formula

y = (x + a) (x + b)

in this basic quadratic the opposite of a and b will be roots. this means negative a and negative b are roots or -a and -b are roots.

so we can fill in our roots for a and b if we want but.remember we.have to use the opposite of.our roots because we.use -a and -b.

so let's fill in our opposite.roots for.a and.b

y = (x + (-1/2)) (x + (-(-1/3)))

since I have two negatives in front of the 1/3 it becomes positive.. So

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I think that's what it comes out to.

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