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melisa1 [442]
3 years ago
9

Factor x3 + x2 + x + 1 by grouping.

Mathematics
2 answers:
Keith_Richards [23]3 years ago
7 0
Should be the answer
         l
         l
        v
(x+1)(x2+2)





kykrilka [37]3 years ago
4 0
To factor by grouping, you have to divide the problem into two groups:
x^3+x^2+x+1
(x^3+x^2)+(x+1)
Factor each group individually
(x^3+x^2)+(x+1)
x^2(x+1)+(x+1)
(x^2+1)(x+1)
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28 cm<br> 45 cm<br> What is the length of the hypotenuse?
maksim [4K]

Answer:

53 cm

Step-by-step explanation:

Using Pythagoras Theorem,

The hypotenuse

=  \sqrt{ {28}^{2}  +  {45}^{2} }

=  \sqrt{2809}

= 53 cm

8 0
3 years ago
Read 2 more answers
Evaluate the expression for n=60. what does your answer represent
Gnoma [55]

Answer:

60

Step-by-step explanation:

The value of n.

5 0
3 years ago
Choose the equation that shows a step in the process of completing the square on the given quadratic. y = x^2 + 8x – 3
klasskru [66]

Answer:

y = x^2 + 8x - 3

y = x^2 + 8x + (8/2)^2 - 3 - (8/2)^2

y = x^2 + 8x + 16 - 3 - 16

Step-by-step explanation:

4 0
3 years ago
Guys help me with a) and b) tasks<br>ANSWER:<br>a) 40<br>b) 25<br>Thanks&lt;3​
umka21 [38]

Step-by-step explanation:

there are 2 similar triangles : ABE and DCE

that means they have the same angles, and the scaling factor from one triangle to the other is the same for every side.

and that means that

DE/AE = EC/BE (= DC/AB)

we know that

AE = AD + DE

BE = BC + EC

a.

so, we have actually

DE/(AD+DE) = EC/(BC+EC)

DE/(10+DE) = 8/(2+8) = 8/10 = 4/5

DE = 4(10+DE)/5

5DE = 4(10+DE) = 40 + 4DE

DE = 40 cm

b.

AD/DE = 3/5

BC/EC must be 3/5 too.

15/EC = 3/5

15 = 3EC/5

75 = 3EC

EC = 25 cm

8 0
1 year ago
-412-(-223) worked out
shutvik [7]

Answer:

-189

Step-by-step explanation:

Remember to follow the rules of signs:

- If there are two positive signs next to each other, you add:

- If there is one negative sign and one positive sign next to each other, you subtract.

- If there is two negative signs next to each other, you add:

- 412 - (-223) = -412 + 223

Subtract:

223 - 412 = -189

-189 is your answer.

~

5 0
3 years ago
Read 2 more answers
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