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Finger [1]
3 years ago
8

In the quadratic equation x2 - 8x + a = 0; what is the value, a, in order to form a perfect square?

Mathematics
1 answer:
Tasya [4]3 years ago
5 0

Answer:

16

Step-by-step explanation:

(x - y)² = x² - 2xy + y²

x = x and y = a

2xy = 8x

2*x*a = 8x

     a = \frac{8x}{2x}

a = 4

a²  = 16

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