simplymariex simplymariex
  • 18-02-2017
  • Mathematics
contestada

Factor p(x) = 3x^3 – 12x

Respuesta :

jingle535
jingle535 jingle535
  • 18-02-2017
Take out a GCF (greatest common factor, which is 3x) factor what is left, (x^2 - 4)

Please respond if you understand, or if you need more help!
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 18-02-2017
remmber
ab-ac=a(b-c)

a=GCF

so factor

3x^3=3*x*x*x
12x=2*2*3*x
gcf=3*x=3x

3x(x^2)-3x(4)=3x(x^2-4)
we can also factor the inner further
remember that a^2-b^2=(a+b)(a-b)
so
(x^2-4)=x^2-2^2=(x+2)(x-2)

fully factored is
3x(x+2)(x-2)
Answer Link

Otras preguntas

What measures the distance between two consecutive crests of a wave? A. a crest B. a trough C. the amplitude D. the wavelength
In this diagram below AB is parallel to CD
Which labeled region of the brain represents the temporal lobe? region d region b region a region c?
What would most likely happen to the food web if the amount of grass drastically decreased?
Instructions:Select the correct answer. Read this excerpt from Edgar Allan Poe’s “The Masque of the Red Death" and answer the question that follows. Here the
oxygen appearing in earths atmosphere is a result of the evolution of photosynthetic prokaryotes
What was introduced to help fund the war in the North?
Genes that carry contrasting inheritance factors are called
What is the area of this composite figure?A.96 cm2B.160 cm2C.208 cm2D.256 cm2
Mark's shopping basket has items costing $8.95, $3.75, $4.15, and $3.90. Estimate his total cost. A.$16 B.18 C.21 D.24 Please help me