Penjelasan dengan langkah-langkah:
[tex] {x}^{2} + 5x - 8 = 0[/tex]
[tex]a = 1 \: \: b = 5 \: \: dan \: \: c = - 8[/tex]
[tex]m + n = - \frac{b}{a} = - \frac{5}{1} = - 5 \\ m \times n = \frac{c}{a} = \frac{ - 8}{1} = - 8[/tex]
[tex](2m + 2) + (2n + 2) \\ = 2m + 2n + 4 \\ = 2(m + n) + 4 \\ = 2( - 5) + 4 \\ = - 10 + 4 \\ = - 6[/tex]
[tex](2m + 2) \times (2n + 2) \\ = 4mn + 4m + 4n + 4 \\ = 4((mn )+ (m + n) + 1) \\ = 4(( - 8) + ( - 5) + 1)) \\ = 4( - 12) \\ = - 48[/tex]
Persamaan kuadrat baru
[tex]{x}^{2} - ( - 6)x + ( - 48) = 0 \\ {x}^{2} + 6x - 48 = 0[/tex]
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Penjelasan dengan langkah-langkah:
[tex] {x}^{2} + 5x - 8 = 0[/tex]
[tex]a = 1 \: \: b = 5 \: \: dan \: \: c = - 8[/tex]
[tex]m + n = - \frac{b}{a} = - \frac{5}{1} = - 5 \\ m \times n = \frac{c}{a} = \frac{ - 8}{1} = - 8[/tex]
[tex](2m + 2) + (2n + 2) \\ = 2m + 2n + 4 \\ = 2(m + n) + 4 \\ = 2( - 5) + 4 \\ = - 10 + 4 \\ = - 6[/tex]
[tex](2m + 2) \times (2n + 2) \\ = 4mn + 4m + 4n + 4 \\ = 4((mn )+ (m + n) + 1) \\ = 4(( - 8) + ( - 5) + 1)) \\ = 4( - 12) \\ = - 48[/tex]
Persamaan kuadrat baru
[tex]{x}^{2} - ( - 6)x + ( - 48) = 0 \\ {x}^{2} + 6x - 48 = 0[/tex]