Jawaban:
a =-1
b=-6
c=-4
Penjelasan dengan langkah-langkah:
x²-4=2x(x+3)
x²-4=2x²+6x
x²-4-2x²-6x=0
x²-2x²-6x-4=0
-x²-6x-4=0
x²- 4=2x(x+3)
ubah ke bentuk baku
2x²+6x-x²+4
2x²-x²+6x+4
x²+6x+4
>>>>
akar² p.k dengan rumus abc
a = 1 , b = 6, c = 4
x1,2 = -b±√b²-4ac/2a
x1,2 = -6±√-6²-4.1.4/2.1
x1,2 = -6±√36-16/2
x1,2 = -6±√20/2 → -6±√4×5/2
x1,2 = -6±2√5/2
[tex]x1 = \frac{ - \not{6} - \not{2} \sqrt{5} }{\not{2}} \\ x1 = - \sqrt{5} - 3[/tex]
[tex]x2 = \frac{ - 6 + 2 \sqrt{5} }{2} \\ x2 = \frac{ - \not{6} +\not{2} \sqrt{5} }{\not{2}} \\ x2= \sqrt{5} - 3 [/tex]
x1 = -√5-3
x2 = √5-3
hp {-√5-3,√5-3}
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Verified answer
Jawaban:
a =-1
b=-6
c=-4
Penjelasan dengan langkah-langkah:
x²-4=2x(x+3)
x²-4=2x²+6x
x²-4-2x²-6x=0
x²-2x²-6x-4=0
-x²-6x-4=0
Jawaban:
x²- 4=2x(x+3)
ubah ke bentuk baku
x²-4=2x(x+3)
x²-4=2x²+6x
2x²+6x-x²+4
2x²-x²+6x+4
x²+6x+4
>>>>
akar² p.k dengan rumus abc
a = 1 , b = 6, c = 4
x1,2 = -b±√b²-4ac/2a
x1,2 = -6±√-6²-4.1.4/2.1
x1,2 = -6±√36-16/2
x1,2 = -6±√20/2 → -6±√4×5/2
x1,2 = -6±2√5/2
[tex]x1 = \frac{ - \not{6} - \not{2} \sqrt{5} }{\not{2}} \\ x1 = - \sqrt{5} - 3[/tex]
[tex]x2 = \frac{ - 6 + 2 \sqrt{5} }{2} \\ x2 = \frac{ - \not{6} +\not{2} \sqrt{5} }{\not{2}} \\ x2= \sqrt{5} - 3 [/tex]
>>>>
x1 = -√5-3
x2 = √5-3
hp {-√5-3,√5-3}