tyrese6163 tyrese6163

16-04-2021
Mathematics

contestada

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

Respuesta :

devishri1977 devishri1977

16-04-2021

Answer:

16

Step-by-step explanation:

(x - y)² = x² - 2xy + y²

x = x and y = a

2xy = 8x

2*x*a = 8x

a = [tex]\frac{8x}{2x}[/tex]

a = 4

a² = 16

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