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Lady bird [3.3K]
3 years ago
5

2.1: Solve the one step equation 9. 70 = -5x 10. x4 = 36 11. 7x = -54

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
3 0

Answer:

-14, 9 and - 54/7

Step-by-step explanation:

  • 70=-5x, x=-14
  • 4x=36, x=9
  • 7x=-54, x=-54/7

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y = x2 - 6x - 8 Complete the square in the quadratic equation in order to write the equation in vertex form.
Airida [17]

Answer:

y = (x-3)^2 - 17

Step-by-step explanation:

To complete the square, take the middle term bx and divide it in two. Then take the square.

x^2 - 6x - 8 has bx = -6x. Take -6/2 = -3. Square -3^2 = 9.

Now to finish completing the square add 9 and subtract 9 from one side.

y = x^2 - 6x - 8

y = (x^2 - 6x +9) -9 - 8

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Step-by-step explanation:

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3 years ago
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