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Umnica [9.8K]
4 years ago
10

Use substitution to write an equivalent quadratic equation.

Mathematics
1 answer:
Anna [14]4 years ago
4 0

Answer:

  z^2 +7z -8 = 0

Step-by-step explanation:

Let z = 3x+2. Then we can substitute z wherever we see 3x+2.

  z^2 +7z -8 = 0 . . . . equivalent quadratic

__

This is easily factored to ...

  (z -1)(z +8) = 0

So, the original quadratic has solutions ...

  (3x +2) -1 = 0

  x = -1/3

and

  (3x +2) +8 = 0

  x = -10/3

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Romashka [77]
-----------------
0.04m² - n²

(0.2m)² - n²

<span>(0.2m + n)(0.2m -  n)</span>
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3 years ago
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Answer:

62.5 mph

Step-by-step explanation:

Given that :

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Answer:

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3 years ago
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Scorpion4ik [409]
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