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