Senica
29.06.2019 •
Mathematics
What are the restrictions of q²+3q-4 over q²-7q-8, and why? a. q≠ -1 and q≠ 8 b. q≠ -1 and q≠4 c. q≠ 1 and q≠-8
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Ответ:
A. q≠ -1 and q≠ 8
Step-by-step explanation:
the restrictions are based on the denominator
(q²-7q-8)
factor this
(q-8) (q+1)
using the zero product property
q-8=0 and q+1 =0
q =8 q=-1
the denominator cannot equal zero so q≠ 8 and q≠-1
Ответ: