Question

Math help pls

Answer 1

@jhonyy9

Answer 2

ok so like a first step when an equation has a zero a complex number like in this case the x = 1 - i so what mean this ?

and not in a last time what mean that x is a zero of an equation ?

Answer 3

@jhonyy9 I'm not sure what you mean..

Answer 4

@dude @Vocaloid

Answer 5

so i think on when an equation has a zero a complex number so the conjugate of this complex number is a zero of this equation too

Answer 6

and in an other way when x_1 is a zero of an equation so this mean that this equation is possibile divide exactly by (x - x_1)

Answer 7

do you know the Viéte formulas ?