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Akar-akar persamaan kuadrat x squared plus p x plus q equals 0 comma space p not equal to 0 space d a n space q not equal to 0 space a d a l a h space x subscript 1 space d a n space x subscript 2. space J i k a space x subscript 1 comma x subscript 2 comma x subscript 1 plus x subscript 2 comma x subscript 1 x subscript 2,

membentuk deret aritmetika 4 berturut-turut, maka nilai p+q adalah .....

  1. -2

  2. -1

  3. 0

  4. 1

  5. 2

R. RGFLSATU

Master Teacher

Jawaban terverifikasi

Pembahasan

x squared plus p x plus q equals 0 comma space p not equal to 0 space d a n space q not equal to 0  x subscript 1 space d a n space x subscript 2 rightwards arrow a k a r minus a k a r n y a  x subscript 1 comma x subscript 2 comma x subscript 1 plus x subscript 2 comma x subscript 1 x subscript 2 rightwards arrow m e m b e n t u k space d e r e t space a r i t m e t i k a  U subscript 1 plus U subscript 4 equals U subscript 2 plus U subscript 3  x subscript 1 plus x subscript 1 x subscript 2 equals x subscript 2 plus x subscript 1 plus x subscript 2  x subscript 1 x subscript 2 equals 2 x subscript 2  x subscript 1 equals 2  M a k a space d e r e t n y a rightwards arrow 2 comma 4 comma 6 comma 8  x subscript 1 plus x subscript 2 equals negative p  6 equals negative p  p equals negative 6    x subscript 1 times x subscript 2 equals q  q equals 8  p plus q equals negative 6 plus 8 equals 2

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