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OpenStudy (anonymous):
x^2 + 15 and 7/24.
OpenStudy (anonymous):
what do you mean and?
OpenStudy (anonymous):
answer
OpenStudy (anonymous):
Can you show me how you solved it please?
OpenStudy (anonymous):
adding and Subtracting Rational Expressions?
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OpenStudy (anonymous):
wait forget what i put... This is right!
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
Multiply the middle x term by 9/9 to get a common denominator. Then you can combine the numerators and write the expression and a single fraction.
OpenStudy (anonymous):
what middle x term?
OpenStudy (anonymous):
is this adding and subtraction rational expressions if so i can give you the answer.
OpenStudy (anonymous):
yes it is.
OpenStudy (anonymous):
4x/9+x-10/9=
4x/9+9x/9-10/9=
(13x-10)/9
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OpenStudy (anonymous):
how'd you get that answer?
OpenStudy (anonymous):
look at the rationals in your example.They are divided by 9.
So multiply the non-rationals by 9/9 (which is 1). That would be x.
Now the example becomes
4x/9 + 9x/9 -10/9
They all have the same denominator, so we can group them all over 9.
(4x + 9x - 10)/9
combine like terms.
(13x - 10)/9