Question

need a solutions please. thanks in adavnce
x^2-3x-1=0

Answer 1

x= 3.30 or x=-0.303, cor to 3 s.f

Answer 2

quadratic formula

Answer 3

Complete The Square

Answer 4

(3+/-sqrt(9-4(1)(-1))/2
(3+/- sqrt(13) )/2

Answer 5

calculator!

Answer 6

\[\left\{x\to \frac{1}{2} \left(3-\sqrt{13}\right),x\to \frac{1}{2} \left(3+\sqrt{13}\right)\right\} \]

Answer 7

(x-1.5)^2=3.25

Answer 8

thanks all