Question

5x²-2x-2=0 by using quadratic formula​

Answer 1

Answer:

$x = \frac{1 + \sqrt{11} }{5}$

$x = \frac{1 - \sqrt{11} }{5}$

Step-by-step explanation:

here a=5, b=-2;and c=-2

x= -b±root of (b²-4ac) whole divided by 2a

=-(-2)±root of((-2)²-4(5)(-2)) whole divided by 2(5)

=2±root of (4+40) whole divided by 10

=(2±√44)/10

=1/5±(√4×11)/10

=1/5±(2√11)/10