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Perhatikan pernyataan di bawah ini!

begin mathsize 14px style left parenthesis straight i right parenthesis space space space 4 straight x squared minus 10 straight x equals 2 straight x open parentheses 2 straight x minus 10 close parentheses  left parenthesis ii right parenthesis space space 7 straight x squared minus 49 equals 7 open parentheses straight x squared minus 7 close parentheses  left parenthesis iii right parenthesis space space straight x squared minus 3 straight x minus 18 equals open parentheses straight x plus 6 close parentheses open parentheses straight x minus 3 close parentheses  left parenthesis iv right parenthesis space space straight x squared plus 5 straight x minus 36 equals open parentheses straight x plus 9 close parentheses open parentheses straight x minus 4 close parentheses end style

Pernyataan yang benar adalah ....

  1. (i) dan (ii)

  2. (i) dan (iii)

  3. (ii) dan (iii)

  4. (ii) dan (iv)

M. Mariyam

Master Teacher

Mahasiswa/Alumni Institut Pertanian Bogor

Jawaban terverifikasi

Pembahasan

begin mathsize 14px style straight i. space space space 2 straight x open parentheses 2 straight x minus 10 close parentheses equals 4 straight x squared minus 20 left parenthesis salah right parenthesis  ii. space space 7 left parenthesis straight x squared minus 7 right parenthesis equals 7 straight x squared minus 49 left parenthesis benar right parenthesis  iii. space open parentheses straight x plus 6 close parentheses. straight space open parentheses straight x minus 3 close parentheses equals straight x squared minus 3 straight x plus 6 straight x minus 18 equals straight x squared plus 3 straight x minus 18 left parenthesis salah right parenthesis  iv. space open parentheses straight x plus 9 close parentheses. open parentheses straight x minus 4 close parentheses equals straight x squared minus 4 straight x plus 9 straight x minus 36 equals straight x squared plus 5 straight x minus 36 left parenthesis benar right parenthesis end style

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Perhatikan pernyataan di bawah ini! (i)3x2+6x=3x(x+6)(ii)6x2−15x=3x(2x−5)(iii)x2+6x+5=(x+5)(x+1)(iv)x2−3x−16=(x−2)(x+8) Pernyataan yang benar adalah ...

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