Solve x^2 + 9x + 9 = 0.

X = Square root of -1 or i

Step-by-step explanation:

x^2 + 9x + 9 = 0

-9

x^2 + 9x = -9

/9

x^2 = -1

x = square root of 1

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

the car was traveling 40 mph before it started skidding. ( 2 points ) 17. was the driver were her brakes working at 75% efficiency or better? ( 2 points ) yes 29.

step-by-step explanation: