Cindy wants to put new carpet in her entryway. The entryway is 15ft. long and 7ft. wide. She wants to buy 10% extra carpet in ca
1 answer:
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Answer:
x=0 , x=-3
Step-by-step explanation:
Apply all exponent rules:
=
×
=
Rewrite equation with
×
+
- 28 = 0
Solve for u to give :
u = 1, u = 1/27
Substitute back u = , solve for x :
= 1 , x= 0
, x= -3
x=0 , x=-3
Substituting x back into original equation verifies our answers