All categories

3 years ago

What is the factored form of x2 – X–2?

Mathematics

2 answers:

Andreas93 [3]3 years ago

6 0

Answer:

Step-by-step explanation:

kotykmax [81]3 years ago

4 0

Answer:

${x}^{2} - x - 2 \\ {x}^{2} - 2x + 1 x- 2 \\ {x}^{2} + 1x - 2 x- 2 \\ x(x + 1) - 2(x + 1) \\ = (x + 1)(x - 2)$

You might be interested in

I watched a movie called Nemo, the movie was 1h:20m long. The first commercial started at 20 minutes ideational commercials were

ankoles [38]

7 1 is 20 2,3,4,5,6,7 is at 10 mins

3 0

3 years ago

Read 2 more answers

I NEED HELP WITH THIS QUESTION QUICK IT'S VER DIFFICULT FOR ME.

Ivenika [448]

Answer:

The relationship is proportional. The constant of proportionality is 20. It represents how many meters the horse runs per second per second. Equation is d=20t

6 0

3 years ago

Can someone please help me with this? Mhanifa? I will mark brainliest

den301095 [7]

Answer:

Option C 20

GOOD LUCK FOR THE FUTURE! :)

8 0

2 years ago

Which of the values shown are potential roots of f(x) = 3x3 – 13x2 – 3x + 45? Select all that apply.

galina1969 [7]

Answer:

All potential roots are 3,3 and $-\frac{5}{3}$ .

Step-by-step explanation:

Potential roots of the polynomial is all possible roots of f(x).

$f(x)=3x^3-13x^2-3x+45$

Using rational root theorem test. We will find all the possible or potential roots of the polynomial.

p=All the positive/negative factors of 45

q=All the positive/negative factors of 3

$p=\pm 1,\pm 3,\pm 5\pm \pm 9,\pm 15\pm 45$

$q=\pm 1,\pm 3$

All possible roots

$\frac{p}{q}=\pm 1,\pm 3,\pm 5\pm \pm 9,\pm 15\pm 45,\pm \frac{1}{3},\pm \frac{5}{3}$

Now we check each rational root and see which are possible roots for given function.

$f(1)= 3\times 1^3-13\times 1^2-3\times 1+45\Rightarrow 32\neq 0$

$f(-1)= 3\times (-1)^3-13\times (-1)^2-3\times (-1)+45\Rightarrow \neq 32$

$f(-3)= 3\times (-3)^3-13\times (-3)^2-3\times (-3)+45\Rightarrow \neq -144$

$f(3)= 3\times (3)^3-13\times (3)^2-3\times (3)+45\Rightarrow =0\\\\ \therefore x=3\text{ Potential roots of function}$

Similarly, we will check for all value of p/q and we get

$f(-5/3)=0$

Thus, All potential roots are 3,3 and $-\frac{5}{3}$ .

5 0

3 years ago

Read 2 more answers

Need help on this please and thank you

Ede4ka [16]

Answer:

(1,9)

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers