Pliss bantu , nomor 9

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Pliss bantu , nomor 9

Pliss bantu , nomor 9

……………………………….

Gambar Jawaban

Rumus
x + x = frac{ - b}{a}
x times x = frac{c}{a}
jadi
a=1 b=-3 c=5
x + x = frac{3}{1}
= 3
x times x = frac{ - 5}{1}
=-5

{3}^{2} + { - 5}^{21}
=
9 + {5}^{21}