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Anni [7]
3 years ago
14

Factor completely.

Mathematics
2 answers:
spin [16.1K]3 years ago
6 0

Answer:

Step-by-step explanation:

As before any expression of the form (a^2-b^2) will always factor to (a-b)(a+b) in this case

x^8-1/81 = (x^4-1/9)(x^4+1/9) = (x^2-1/3)(x^2+1/3)(x^4+1/9) and if we completely factor it including square roots.(x-\sqrt{1/3})(x+\sqrt{1/3})(x^2+1/3)(x^4+1/9)

KiRa [710]3 years ago
3 0

Answer: x(8) - /81

Step-by-step explanation:

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Which expression is equivalent to (3a)-27<br> 3a2<br> 0<br> o<br> o
Phoenix [80]

Answer:

Step-by-step explanation:

(3a) - 27 = 3a - 3^3 = 3(a - 3^2)

Next time, please share all of the answer choices.  Thanks.

3 0
3 years ago
Five times the result of adding one to a certain number, is equal to four times the number, plus three. Find the number
Galina-37 [17]

Answer:

The number is -2

Step-by-step explanation:

Let the number = x

Given that:

Five times the result of adding one to a certain number, is equal to four times the number, plus three.

The equation will be:

5(x+1) = 4x +3

Simplifying

5x + 5 = 4x +3

Taking terms with x on left side and others on right side

5x - 4x = 3 - 5   (sign of transferred terms will be changed)

x = -2

Proof :

Condition 1:

  • number = -2                                  
  • Add one = -2 +1 = -1
  • Multiply 5 = -5

Condition 2:

  • 4 times  of number = 4 (-2) = -8
  • Add 3 = -8 +3 = -5

Hence both conditions have same answer.

I hope it will help you!

5 0
3 years ago
Triangle IJK is dilated by a scale factor of 3/4
Alecsey [184]

Answer:

  • 18

Step-by-step explanation:

  • JK * 3/4 = J'K'
  • JK * 3/4 = 13.5
  • JK = 13.5 : 3/4
  • JK = 13.5*4/3
  • JK = 18
8 0
3 years ago
The smallest number by which 192 should be multiplied to make it a perfect cube is __
algol [13]

Answer: 9

Step-by-step explanation:

192 * 9 = 1728

Cube root of 1728 is 12

3 0
3 years ago
What is equivalent to 4:3
kap26 [50]

Answer:

the answer is 6:8 or 9:12

Step-by-step explanation:

7 0
3 years ago
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