carilah akar² penyelesaian dengan metode pemfaktoran (a=1)
pleasee tolong dijawab pake cara no ngasal
pleasee tolong dijawab pake cara no ngasal
1
[tex]x {}^{2} + 8x + 15 = 0 \\ (x + 3)(x + 5) \\ x1 = - 3 \\ x2 = - 5[/tex]
2
[tex]x {}^{2} - 2x - 8 = 0 \\ (x +4 )(x - 2) \\ x1 = - 4 \\ x2 = 2[/tex]
3
[tex]x {}^{2} - 6x + 8 = 0 \\ (x - 2)(x - 4) \\ x1 = 2 \\ x2 = 4[/tex]
4
[tex]x {}^{2} - x - 20 = 0\\ (x - 5)(x + 4) \\ x1 = 5 \\ x2 = - 4[/tex]
5
[tex]x {}^{2} + 4x - 45 = 0 \\ (x + 9)(x - 5) \\ x1 = - 9 \\ x2 = 5[/tex]
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