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Soloha48 [4]
3 years ago
8

find the positive value of k that would make he left side of the equation a perfect square trinomial x^2-kx+64

Mathematics
1 answer:
Nataliya [291]3 years ago
6 0

Answer: 16

<u>Explanation:</u>

x² - kx + 64

Since we are looking for a perfect square, then we need to take the square root of 64 to find the factors: √64 = 8

So, the factors are: (x - 8)(x - 8)

Foil (or distribute) to get: x² - 16x + 64 <em>The k-value is 16</em>

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