Cari nilai D
D=\left(x-2\right)^{2}
Cari nilai x (complex solution)
x=-\sqrt{D}+2
x=\sqrt{D}+2
Cari nilai x
x=-\sqrt{D}+2
x=\sqrt{D}+2\text{, }D\geq 0
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D=x^{2}-4x+4
Gunakan teorema binomial \left(a-b\right)^{2}=a^{2}-2ab+b^{2} untuk menjabarkan \left(x-2\right)^{2}.
Contoh
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