3 years ago

What is -6(2x-9) simplified

Mathematics

2 answers:

Alexandra [31]3 years ago

7 0

-6(2x-9)

Mutiply the bracket by -6

(-6)(2x)= -12x

(-6)(-9)= 54

Answer: -12x+54

erma4kov [3.2K]3 years ago

4 0

Answer:

-12x+54

Step-by-step explanation:

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The polynomial function is,

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The zeros of the polynomial are 2 and (3+i). Root 2 has multiplicity of 2 and (3+i) has multiplicity of 1

The general form of the equation will be,

$\Rightarrow y=(x-(2))^2(x-(3+i))(x-(3-i))$ ( ∵ (3-i) is the conjugate of (3+i) )

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$\Rightarrow y=(x^2-4x+4)((x^2-6x+9)+1)$

$\Rightarrow y=(x^2-4x+4)(x^2-6x+10)$

$\Rightarrow y=x^2x^2-6x^2x+10x^2-4x^2x+4\cdot \:6xx-4\cdot \:10x+4x^2-4\cdot \:6x+4\cdot \:10$

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$\Rightarrow y=x^4-10x^3+38x^2-64x+40$

Therefore, this is the required polynomial function.

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4 years ago