Asked by Bllly
please help me to simplify this expression:
2/y^2-3y+2 + 7/y^2-1
2/y^2-3y+2 + 7/y^2-1
Answers
Answered by
drwls
Do you mean
2/(y^2-3y+2) + 7/(y^2-1) ?
1/(y-1) can be factored out of both terms. That leaves you with
[1/(y-1)][2/(y-2) + 7/(y+1)]
That is not much simpler, however.
You could create a common denominator with the second bracketed term, but that won't simplify it much, either.
2/(y^2-3y+2) + 7/(y^2-1) ?
1/(y-1) can be factored out of both terms. That leaves you with
[1/(y-1)][2/(y-2) + 7/(y+1)]
That is not much simpler, however.
You could create a common denominator with the second bracketed term, but that won't simplify it much, either.
Answered by
MathMate
Please take care when transcribing questions involving fractions. All numerators and denominators have implicit parentheses around them, so when put onto a single line, they are <i>necessary</i>. An omission will change the value of the expression.
For example:
1/4x+3 is not the same as 1/(4x+3) because without parentheses division is done before addition.
For example:
1/4x+3 is not the same as 1/(4x+3) because without parentheses division is done before addition.
Answered by
julie
(x+5)over 6= 1- (x+5) over 7
(x+5)/6= 1- (X+5)/7
I know you have to get a CD of 42 but I can't get the write answer.
(x+5)/6= 1- (X+5)/7
I know you have to get a CD of 42 but I can't get the write answer.
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