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3 years ago

Factorise x cubed - x

Mathematics

1 answer:

kirill [66]3 years ago

7 0

Answer:

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

Step-by-step explanation:

Given the expression x³ - x

On factorizing

x³ - x

= x(x²-1)

Using difference of two square

a² - b² = (a+b) (a-b)

x² - 1

= x² - 1²

= (x+1)(x-1)

The complete factor

x³ - x

= x(x²-1)

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

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rjkz [21]

Answer:11z+20

Step-by-step explanation:3z+2-5z+18z+12-5z+6

Then u bring light terms together

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3 years ago

Calculate the volume of the composite shape please please help giving brainliest!!

Ilya [14]

${\qquad\qquad\huge\underline{{\sf Answer}}}$

There are two hemispheres in there with radius 3 cm, so we can consider it as a whole one. and the other shape in between is Cylinder with radius 3 cm and height 4 cm.

Volume of whole ahape = volume of Cylinder + volume of sphere ~

Volume of sphere :

$\qquad \sf \dashrightarrow \: \cfrac{4}{3} \pi {r}^{3}$

$\qquad \sf \dashrightarrow \: \cfrac{4}{3} \sdot3.14 \sdot {(3)}^{3}$

$\qquad \sf \dashrightarrow \: (4 )\sdot(3.14) \sdot(9)$

$\qquad \sf \dashrightarrow \: 113.04 \: \: cm {}^{3}$

Volume of Cylinder :

$\qquad \sf \dashrightarrow \: \pi {r}^{2} h$

$\qquad \sf \dashrightarrow \: 3.14 \cdot(3) {}^{2} \sdot4$

$\qquad \sf \dashrightarrow \: 3.14 \sdot(9) \sdot(4)$

$\qquad \sf \dashrightarrow \: 113.04 \: \: cm {}^{3}$

Volume of whole shape :

$\qquad \sf \dashrightarrow \: 113.04 + 113.04 = 226.08 \: \: cm {}^{3}$

$\qquad \sf \dashrightarrow \: 226.08 \: \: cm {}^{3}$

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2 years ago

What is the difference between 76.82 and 2.761

Sophie [7]

74.059 is the answer.

Hope this helps...

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3 years ago

Read 2 more answers

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Bingel [31]

Answer:

Step-by-step explanation:

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3 years ago

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Katena32 [7]

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2 years ago