ashantirichards1 ashantirichards1

27-02-2018
Mathematics

contestada

what is the sum of the rational expressions below? x/x-2 + 7x/x+5
a. 8x/2x+3
b. 8x/x^2+3x-10
c. 8x^2-9x/x^2+3x-10
d. 8x^2-9x/2x+3

Respuesta :

carlosego carlosego

27-02-2018

x / x-2 + 7x / x + 5
What you must do in this case is a sum of fractions.
Step 1:
Common factor x in the numerator
Step 2:
Make addition of fractions
Step 3:
Rewrite the expression.
See attached image.
Answer:
c. 8x ^ 2-9x / x ^ 2 + 3x-10

Ver imagen carlosego

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