(x-3) x (x-3) =pakai rumus yaa

By Admin ReiPosted on December 9, 2022

(x-3) x (x-3) =pakai rumus yaa

(x-3)(x-3)

= $(x-3)^{2}$

maka

kita pakai rumus $(a-b)^{2}$

hasilnya, $a^{2} + 2ab + b^{2}$

mari masukan ke soal

$a^{2} + 2ab + b^{2}$

a= x

b=3

= $x^{2}+ 2(x)(-3) + 3^{2}$

= $x^{2} - 6x + 9$