1) a²- 5a = -6
2) p² = p + 72
Jawaban:
1. x1 = 3, x2 = 2
2. x1 = 9, x2 = -8
Penjelasan dengan langkah-langkah:
Rumus:
[tex]x = \frac{ - (b)± \sqrt{ (b) {}^{2} - 4 \times a(c)} }{2 \times a}[/tex]
1. a²-5a+6 = 0
[tex]a {}^{2} + - 5a + 6 = 0 \\ \\ a = 1 \\ \\ b = - 5 \\ \\ c = 6 \\ \\ a \: = \frac{ - ( - 5)± \sqrt{( - 5) {}^{2} - 4 \times 1 \times 6} }{2 \times 1} \\ \\ a = \frac{5 + 1}{2 \times 1} = \frac{6}{2} = 3 \\ \\ a = \frac{5 - 1}{2 \times 1} = \frac{4}{2} = 2 [/tex]
2. p² - p - 72 = 0
[tex]a \: = 1 \\ \\ b = - 1 \\ \\c = - 72 \\ \\ p = \frac{ - ( - 1)± \sqrt{ (- 1) {}^{2} - 4 \times 1( - 72)} }{2 \times 1} \\ \\ p \: = \frac{1 + 17}{2} = \frac{18}{2} = 9 \\ \\ p = \frac{1 - 17}{2} = \frac{ - 16}{2} = - 8[/tex]
Semoga membantu, jika ada kesalahan, saya mohon maaf.
Semoga membantu, jika ada kesalahan, saya mohon maaf.Jika boleh dan jawaban saya sudah benar, mohon dijadikan jawaban terbaik.
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