2 years ago

Solve x3 + x2 - x - 1 =. 0 by factoring by grouping

Mathematics

2 answers:

Alexus [3.1K]2 years ago

6 0

Answer:

(x^2-1)(x+1)=0

(x+1)(x-1)(x+1)=0

x=1; x=-1

Step-by-step explanation:

muminat2 years ago

5 0

Answer:

(x^2-1)(x+1)=0

(x+1)(x-1)(x+1)=0

x=1; x=-1

Step-by-step explanation:

You might be interested in

Which fraction is not equivalent to 30/48 ?

laiz [17]

C and D.If I'm right,can u make me the brainliest answer?Thank You.

7 0

2 years ago

Read 2 more answers

60 is x% of 12. Find the value of x.

Liula [17]

Answer:

Step-by-step explanation:

We can set up a percentage proportion to find the value of x.

$\frac{12}{x} = \frac{60}{100}$

Now we cross multiply:

$100\cdot12=1200\\\\1200\div60=20$

Hope this helped!

4 0

3 years ago

The graph shows the probability distribution of a random variable.

Natasha2012 [34]

The answer is 0.50.

P(4<=X<=8)=P(x=4)+ P(x=5)+ P(x=6)+ P(x=7)+ P(x=8)= 0.05+ 0.15+0.15+0.15 +0 = 0.50

Notice that in 8 the line touches the x axis so it’s corresponding probability is 0.

5 0

2 years ago

If parker uses online banking and average 20 transactions a month, which bank should he choose

taurus [48]

Each month that will give them 20$ for

7 0

3 years ago

Identify the variable terms, constant terms, and coefficients for each expression.

Lena [83]

Answer:

ejnbn

Step-by-step explanation:

fnbfnt5jk2q54mref vjrju3

6 0

3 years ago