Answer:
2 hours
Step-by-step explanation:
625/2401
5/7 ^ 4 = 5 * 5 * 5 * 5 / 7*7*7*7 = 625/2401
please note -2 is not a zero ,it should be 2 is a zero.
by synthetic division
2| 1 4 -10 -4
| 2 12 4
|----------------
1 6 2 | 0
x²+6x+2=0
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