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style="max-width: none; vertical-align: -3px;" width="715">

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  1. 2

  2. 3

  3. 4

  4. 6

  5. 8

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N. Mustikowati

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

Jawaban terverifikasi

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Pembahasan

Bentuk umum persamaan kuadrat, Maka bentuk Memiliki A = 1, B = (a-1) dan C = 2 Penjumlahan akar-akar Perkalian akar-akar Substitusi ke persamaan (2) maka diperoleh, Maka kita dapat mengetahui melalui , sehingga Atau Karena a > 0maka yang memenuhi adalah a = 4

Bentuk umum persamaan kuadrat,

 

Maka bentuk

 

Memiliki

A = 1, B = (a-1) dan C = 2

 

  • Penjumlahan akar-akar

 

  • Perkalian akar-akar

 

Substitusi begin mathsize 12px style alpha equals 2 beta end style ke persamaan (2) maka diperoleh,

Maka kita dapat mengetahui begin mathsize 12px style alpha end stylemelalui begin mathsize 12px style straight alpha equals 2 straight beta rightwards arrow straight alpha equals 2 left parenthesis plus-or-minus 1 right parenthesis equals plus-or-minus 2 end style, sehingga

Atau

Karena a > 0 maka yang memenuhi adalah a = 4

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di sesi Live Teaching, GRATIS!

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Pertanyaan serupa

Susunlah persamaan kuadrat dalam y yang akar-akarnya adalah kuadrat dari masing-masing akar persamaan berikut! x 2 + 9 x − 10 = 0

1

4.2

Jawaban terverifikasi

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