ruhikaambavaram ruhikaambavaram
  • 18-09-2021
  • Mathematics
contestada

Given f(x)=x^2+kx-19 and the remainder when f(x)is divided by x-7 is −5, then what is the value of k

Respuesta :

dufybufy123 dufybufy123
  • 18-09-2021

Answer:

k=2 i goog it

Step-by-step explanation:

Answer Link
travisbird1004
travisbird1004 travisbird1004
  • 18-09-2021
The answer is
k
=
2
Explanation:
Let
f
(
x
)
=
x
3
+
k
x
2
+
x
+
5
When
f
(
x
)
is divided by
(
x
+
2
)
, the remainder is
=
3
This is the remainder theorem
so,
f
(
−
2
)
=
−
8
+
4
k
−
2
+
5
=
3
4
k
=
3
+
5
=
8
k
=
2
Answer Link

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