Multiply polynomials #3

Mathematics

2 answers:

Kitty [74]3 years ago

7 0

Multiplying the two together, you get an equation such as

-6x^4 - 12x^3 +33x^2 +12x -27.

trasher [3.6K]3 years ago

3 0

Answer:

-6x^4-12x^3+33x^2+12x-27

Step-by-step explanation:

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Choose one of the factors of 27x^3 + 512y^3.

PilotLPTM [1.2K]

27=3³ and 512=8³
(3x+8y)(9x²-24xy+84y²) are the two factors.
C is the answer.

3 0

3 years ago

Yo can somebody help me with this question

nydimaria [60]

Answer:

$\huge\boxed{x=9}$

Step-by-step explanation:

$\angle A\cong\angle B\qquad\text{therefore}\qquad AC\cong BC\Rightarrow|AC|=|BC|\\\\\text{We have}\ |AC|=20;\ BC=3x-7.\\\\\text{Therefore}\\\\3x-7=20\qquad|\text{add 7 to both sides}\3x-7+7=20+7\\\\3x=27\qquad|\text{divide both sides by 3}\\\\\dfrac{3x}{3}=\dfrac{27}{3}\\\\x=9$