Question

Please help me answer this math question

Answer 1

k>0: ]-∞, 1[ v ]9 , +∞[

Explanation:

we know that D > 0 because the anwser has to have two outcomes so:

b²-4.a.c>0 => (k-3)²-4.k.1>0 <=> k²-6k+9-4k>0 <=> k²-10k+9>0

=> D=8² : x1 = 9 v x2 = 1

k>0: ]-∞, 1[ v ]9 , +∞[