excellentmikkel
excellentmikkel excellentmikkel
  • 10-01-2020
  • Mathematics
contestada

In factoring by group how do you solve:

x^3+8x^2-x-8
Also:
y^3-y^2+2y-2

Respuesta :

MathPhys
MathPhys MathPhys
  • 10-01-2020

Answer:

(x + 8) (x + 1) (x − 1)

(y − 1) (y² + 2)

Step-by-step explanation:

x³ + 8x² − x − 8

Factor from the first two terms:

x² (x + 8) − x − 8

And from the last two terms:

x² (x + 8) − (x + 8)

Factor:

(x + 8) (x² − 1)

Factor the difference of squares:

(x + 8) (x + 1) (x − 1)

y³ − y² + 2y − 2

Factor from the first two terms:

y² (y − 1) + 2y − 2

And from the last two terms:

y² (y − 1) + 2 (y − 1)

Factor:

(y − 1) (y² + 2)

Answer Link

Otras preguntas

what technological advantages did cortes have?
Let mAngleA = 40°. If AngleB is a complement of AngleA, and AngleC is a supplement of AngleB, find these measures. mAngleB = ° mAngleC =
Who is the “Amazon”? What type of historical knowledge does she represent? In the daughter of time by josephine Tey
help me PLZZ!!!!!!!!!!!!!!!!
how would I work out 4(m+7)=47 In equations? ​
The running shoes Gina bought at a 20%-off sale were originally priced at $70. Before tax was added, how much money did Gina save by buying the shoes on sale?​
1. What is the mass of 2.65×1023 atoms of lithium? grams
When we talk about how a Ferrari obtains a top speed of 349 km/h, are we referring to average speed or instantaneous? How do you know?
Factor the polynomial by grouping. 12x^x+x−13
If you are sore after a workout, which principle have you most ikey violated? A. specificity B. diminishing returns. C. rest and recovery D.