Answer:
Yes.
Step-by-step explanation:
Option B was correct because it said that x was less than 1 so one couldn't be an answer. Knowing that you would have to pick one with an open circle showing that 1 couldn't be it so that narrows down the options to b or c. The line goes in the direction of the less than arrow (<) so that would point to answer b.
3/4 I believe since 6 1/4- 51/2 is 3/4
A. (x-2)(x+5)(x-3) is the correct answer to this question : )
Answer:
-256
Step-by-step explanation:
Put a negative next to 2^8 and you'll get your answer.
The number of positive roots is the number of changes of signs there are, then decrease by 2 each time and stop when you get to 1 or 0
negative roots, sub every x with -x and reevaluate, count change of signs
decrease by 2 each time and stop when you get to 1 or 0
y=+2x⁵-x⁴-2x³+4x²+x-2
+,-,-,+,+,-
1 2 3
3 or 1 positive roots
replace x with -x ( baically flip all signs of odd powerd numbers)
y=-2x⁵-x⁴+2x³+4x²-x-2
-,-,+,+,-,-
1 2
2 or 0 negative roots
3 or 1 positive roots
2 or 0 negative roots
2nd option is answer
