Please answer the attached question by selecting of the the given answers.
2 answers:
Answer:
C
Step-by-step explanation:
Factor, where possible the expressions on the numerators/ denominators
3x - 21 = 3(x - 7) ← common factor of 3
x² + 3x = x(x + 3) ← common factor of x
7x - 49 = 7(x - 7) ← common factor of 7
The rational expression can now be written as
×
Cancelling the factors x, x - 7 on the numerator/denominator leaves
→ C
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Answer:
Not a factor because there is a remainder.
Step-by-step explanation:
Let's use synthetic division to solve this..
-1 ║ 2 | 4 | -2 | -8
║ | -2| -2 | 4
║ 2 | 2| -4 | -4
PS: if anyone knows a better way to do a synthetic division chart please let me know.