Q: Use second derivative test and find that the function h(x)=xki power 4+2x-3 has relative x=-1
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Answer:
Answer:
k=-8
Step-by-step explanation:
we know if x+2 is factor of x^4+x^3-x^2-2x+k
x=-2 will be a solution of the equation
sub x=-2
(-2)^4+(-2)^3-(-2)^2-2*-2+k=0
=>16-8-4+4+k=0
k+8=0
therefore k=-8
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