Answer: x ≓ 6.899067609
Step-by-step explanation:
Easy because:
(2 • (x3)) - 11x2) - 18x) - 9 = 0
(2x3 - 11x2) - 18x) - 9 = 0
2x3 - 11x2 - 18x - 9 = 0
2x3-11x2-18x-9 = 0
F(x) = 2x3 - 11x2 - 18x - 9
At x= 6.00 F(x) is equal to -81.00
At x= 7.00 F(x) is equal to 12.00 F( 6.899067609 ) is -0.000000436
