Answer:
A
Explanation:
Given
x² - 8x = 3
To complete the square
add (half the coefficient of the x- term)² to both sides
x² + 2(- 4)x + 16 = 3 + 16
(x - 4)² = 19 ( take the square root of both sides )
x - 4 = ±
( add 4 to both sides )
x = 4 ±
![√(19)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/lqpfsa59ot4mx5im23hfe85ii9pevdtfec.png)
Solution set is (4 -
, 4 +
)