131k views
4 votes
7s. 49

————- - —————
s^2-14s+49. s^2-14s+49

it’s supposed to be like a fraction ‍♀️

1 Answer

4 votes
the correct question is
(7s)/(s^2 - 14s + 49) - (49)/(s^2 - 14s + 49)

----- > (7s-49)/(s^2 - 14s + 49)

s^2 - 14s + 49------------ > solving the quadratic equation

s1=7 s2=7 ------------> see the attached figure
therefore
s^2 - 14s + 49=(s-7)(s-7)=(s-7)²
substituting
(7s-49)/(s^2 - 14s + 49)=(7s-49)/(s-7)²=7[s-7]/[(s-7)²]------ > 1/(s-7)

the answer is 1/(s-7)
7s. 49 ————- - ————— s^2-14s+49. s^2-14s+49 it’s supposed to be like a fraction ‍♀️-example-1
User Mayank Tiwari
by
9.2k points

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