Kasha drove 135 miles and used 5.4 gallons of gas . The fuel efficiency of her car remains consistent and gas costs $2.59 per ga
1 answer:
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Answer:
x = 4 ±
Step-by-step 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 ±