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Lelu [443]
3 years ago
13

If (x + 2) is a factor of x3 − 6x2 + kx + 10, k =

Mathematics
1 answer:
mafiozo [28]3 years ago
7 0
Hello:
let : f(x) = <span>x3 − 6x2 + kx + 10
</span><span>If (x + 2) is a factor of x3 − 6x2 + kx + 10  : f(-2) = 0
(-2)^3-6(-2)² +k(-2)+10=0
-8 -24-2k +10 = 0
-2k =8+24-10
-2k = 22
k = -11</span>
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