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worty [1.4K]
3 years ago
11

What is the multiple zero and multiplicity of f(x)=x^3-8x^2+16x?

Mathematics
2 answers:
lions [1.4K]3 years ago
4 0
Multiplicity is how many times a root repeats
factor
x(x²-8x+16)
what times wat =16 and adds to -8
-4 and -4
x(x-4)(x-4)
x(x-4)²
set to zero
x=0

x-4=0
x=4

roots are 0 ad 4

4 repeats 2 times, so has a multiplicty of 2


so
roots are 0, and 4 multiplicity 2

Jet001 [13]3 years ago
4 0

Answer:

x =0, x =4, x = 4

Step-by-step explanation:

Given: f(x) = x^3 -8x^2 +16x

To find the zeros, we need to plug in f(x) = 0, we get

x^3 - 8x^2 +16x = 0

Here x is the common factor, so we can take it out.

x(x^2 - 8x +16) = 0

Now we can factorize x^2 -8x +16

x^2 -8x +16 = (x -4)(x-4)

So

x(x^2 - 8x -16) = 0

x(x-4)(x-4) = 0

x = 0, (x -4) = 0, x-4 = 0

x =0, x = 4, x = 4

Here the two roots are real and equal.

Therefore, the zeros of the given function are x =0 and x = 4 and x = 4

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