Find the zeros of the following

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
13 ) Go...
[tex]f(x) = {x}^{2} - 2x[/tex]
[tex]0 = {x}^{2} - 2x[/tex]
[tex] {x}^{2} - 2x = 0[/tex]
Factor x
[tex]x(x - 2) = 0[/tex]
[tex]x = 0 \: \: \: or \: \: \: x - 2 = 0[/tex]
[tex]x = 0 \: \: \: \: or \: \: \: \: x = 2[/tex]
These are the zeroes.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
14 ) Go...
[tex]f(x) = {x}^{3} + 9x + 11x - 21[/tex]
[tex]0 = {x}^{3} + 9 {x}^{2} + 11x - 21[/tex]
[tex] {x}^{3} + 9 {x}^{2} + 11x - 21 = 0[/tex]
[tex](x - 1)(x + 3)(x + 7) = 0[/tex]
[tex]x - 1 = 0 \: \: or \: \: x + 3 = 0 \: \: or \: \: x + 7 = 0 \\ [/tex]
[tex]x = 1 \: \: \: or \: \: \: x = - 3 \: \: \: or \: \: \: x = - 7 \\ [/tex]
These are the zeroes.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️