nxuraao nxuraao

Today at 9:04 AM
Mathematics

Answered

The function f(x) = 3.r4 + kx3 + x – 2 has an x-intercept at x = -2.
What is the value of k in the function f(r)?
O A
2
B.
13
2
C. -3
D. 7

The function f(x) = 3.r4 + kx3 + x – 2 has an x-intercept at x = -2. What is the value of k in the function f(r)? O A 2 B. 13 2 C. -3 D. 7 class=

Answer :

mathnerd51 mathnerd51

Today at 9:08 AM

See the picture below

${teks-lihat-gambar} mathnerd51

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ghaithgh ghaithgh

Today at 9:09 AM

Answer:

Choose (A)

Step-by-step explanation:

f(x)=3x⁴+kx³+x-2

f(x)=3(-2)⁴+k(-2)³+(-2)-2

=-8k+44

-8k=-44

k=44/8

k=11/2

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