If x^2-kx-3=0,x^2+kx-15=0 have common root then k=
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Answer:
kx=6
Step-by-step explanation:
x²-kx-3=x²+kx-15
x² gets cut
-kx-3=kx-15
-3+15=kx+kx
2(kx)=12
kx=6
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