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Annette [7]
3 years ago
14

X^3 + 8 = (x+2)(____) What do I have to multiply by (x+2) to get x^3 + 8

Mathematics
1 answer:
sasho [114]3 years ago
7 0
                  x² -  2x + 4
x + 2|x³ + 0x² + 0x + 8
        x³ + 2x²
               -2x² + 0x
               -2x² -  4x
                          4x + 8
                          4x + 8
                                  0

x³ + 8 = (x + 2)(x² - 2x + 4)
x³ + 8 = (x + 2)(x - 2)(x - 2)
x³ + 8 = (x + 2)(x - 2)²
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Help please n thanks
garri49 [273]

Answer:

The answer I would choose is c

Hope this helped :)

5 0
3 years ago
Combine like terms to create an equivalent expression.<br><br> 17−3(37n−27)71 −3( 73 n− 72)
patriot [66]

Answer:

\frac{1}{7}-3(\frac{3}{7}n-\frac{2}{7})=1-\frac{9}{7}n

Step-by-step explanation:

Given : Expression \frac{1}{7}-3(\frac{3}{7}n-\frac{2}{7})

To find : Combine like terms to create an equivalent expression ?

Solution :

Step 1 - Write the expression,

\frac{1}{7}-3(\frac{3}{7}n-\frac{2}{7})

Step 2 - Apply distributive property, a(b+c)=ab+ac

=\frac{1}{7}-3\times \frac{3}{7}n+3\times \frac{2}{7}

=\frac{1}{7}-\frac{9}{7}n+\frac{6}{7}

Step 3 - Combine like terms,

=\frac{1}{7}+\frac{6}{7}-\frac{9}{7}n

=\frac{1+6}{7}-\frac{9}{7}n

=\frac{7}{7}-\frac{9}{7}n

=1-\frac{9}{7}n

Therefore,  \frac{1}{7}-3(\frac{3}{7}n-\frac{2}{7})=1-\frac{9}{7}n

4 0
3 years ago
Read 2 more answers
Can someone help me ​
algol [13]

Answer:

A)310.18g/mol

B)84.9947g/mol

C)108.01 g/mol

d)159.7g /mole(Approx)

e)Coc12 g/mol

f) A1(OH)3 g/mol

g)83.9949 g/mol

h)197.9 g/mol

i)18.01529 g/mol

Step-by-step explanation:

Hope u happy with my answer...

please mark me as brainlest

7 0
3 years ago
Help me with the question thanks!!
Volgvan

16. It is the only even number in the group. I know this because:

25/2 = 12.5

16/2 = 8

49/2 = 24.5

63/2 = 31.5

81/2 = 40.5

:) Hope I helped

3 0
3 years ago
What is the axis of symmetry for the graph of y - 4x = 7 – x2?
Bad White [126]

Answer:

x = 2  is the axis of symmetry

Step-by-step explanation:

y - 4x = 7 – x2?

y =  -x²+4x +7

y = - ((x²- 4x+4)-4)+7

y = - (x-2)²+11 ..... is the the parabola's equation  when : x = 2  is the axis of symmetry

4 0
3 years ago
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