If = −1/2is a zero of the polynomial p(x) =2x^3 +kx^2−11x−6 , find the value of ‘k’.
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Answer:
3
Step-by-step explanation:
1. pembuat nol
p(-1/2)=2(-1/2)^3+k(-1/2)^2-11(-1/2)-6=0
2. lanjutkan prhitungannya smpai mnemukan k
-2/8+k/4+11/2-6=0
3. kalikan dengan 8
-2+2k+44-48=0
2k=2-44+48
2k=6
k=3
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