SOLUTION: can you guys please help me through these two problems:
instructions say simplify each sum:
(-3x)/(x^2-9) + (4)/(2x-6)
and
these instructions say simplify each complex fr
Algebra.Com
Question 175243: can you guys please help me through these two problems:
instructions say simplify each sum:
(-3x)/(x^2-9) + (4)/(2x-6)
and
these instructions say simplify each complex fraction:
(-3)/(5/x+y)
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
simplify each sum:
+
The 1st denominator is the "difference of squares"; the 2nd denominator can also be factored;
+
The common denominator will be 2(x+3)(x-3)so we have
= =
Factor out 2 in the numerator, then cancel the twos
=
and
these instructions say simplify each complex fraction:
(-3)/(5/x+y)
:
When dividing fractions invert the dividing fraction and multiply
-3 * =
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