38
tetas grandes
x2 = 81 Square root both sides:- x = +/- 9
The two solutions are the conjugate complex numbers, +i*sqrt(11) and -i*sqrt(11), where i is the imaginary square root of -1.
x = 2 or -2
2 this Domo
Use the quadratic equation formula to find the solutions to this equation.
13
They are x = -1 and x = 4.
x2+7x+3 = 0 Using the quadratic equation formula the solutions are:- x = -6.541381265 or x = -0.4586187349
There are no real solutions because the discriminant of the quadratic equation is less than zero.
There are two solutions for x: x=11 and x=-7