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3y^2+5y+9=0
^ artinya pngkat
= y² (4² + 5y + 6 ) + 3 (4² + 5y + 6 )
= ( y² x 4² ) + (y² x 5y ) + ( y² x 6 ) + ( 3 x 4² ) + ( 3 x 5y ) + ( 3x 6 )
= 16y² + 5y³ + 6y² +48 + 15y +18
= 16y² + 6y² + 48 + 18 + 5y³ + 15y
= 22y² + 66 + 5y³ + 15y
semoga bermanfaat yaa... maaf kalau ada yang salah