If x³ + 2x and
x³ − 7x² + 4x +2 + k have a common linear polynomial
factor, then the value of k is what?
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Answers
Answered by
1
Answer:
Let the function be represented by f(x).
As x+2, exactly divides f(x),
−2 is a zero of f(x), hence f(−2)=0
f(x)=2x
3
+5x
2
−x−k
f(−2)=2(−2
3
)+5(−2
2
)+2−k=0
⇒0=−16+20+2−k
⇒k=6
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Answered by
0
Answer:
0=-16+20+2-K
K=6
Step-by-step explanation:
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