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The answer to your question is below

Step-by-step explanation:

1) k² + 3k - 40 = 0

  (k + 8)(k - 5)= 0

2.- x²- 10x = 0

   x(x - 10) = 0

3.- y² + 18y + 80 = 0

    (y + 10)(y + 8) = 0

4.- h² - 4h = 0

    h(h - 4) = 0

5.- n²- 11n = 0

   n(n - 11) = 0

6.- p² - 13p + 40 = 0

    (p - 8)(p - 5) = 0

7.- h² - 7h - 60 = 0

   ( h -12)(h + 5) = 0

8.- h² + 7h - 44 = 0

     (h + 11)(h - 4)= 0

9.- r² + 6r = 0

   r(r + 6) = 0

10.- k² - 10k = 0

      k (k - 10) = 0

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step-by-step explanation:

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