4804174946
11.12.2019 •
Mathematics
Rational equation for x, 3x/x+1 + 4/x-2=3
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Ответ:
x = - 10
Step-by-step explanation:
Express the fractions on the left side as a single fraction.
Multiply the numerator/denominator of the first fraction by (x - 2)
Multiply the numerator/denominator of the second fraction by (x + 1)
+ = 3
Distribute the numerators and simplify
= 3 ( cross- multiply )
3x² - 2x + 4 = 3(x+ 1)(x - 2) ← distribute
3x² - 2x + 4 = 3(x² - x - 2)
3x² - 2x + 4 = 3x² - 3x - 6 ( subtract 3x² - 3x from both sides )
x + 4 = - 6 ( subtract 4 from both sides )
x = - 10
Ответ:
C) The radii of both bases are the same.
Step-by-step explanation:
I took that test on E d g e n u i t y and it was right.
Have a fintastic rest of your day!! \(^o^\)