Matematika

Pertanyaan

1. 3x + 5y²- 2 dng 4x + (-2y²) - 7 =
2. - (x + 2y - Z) + (2x - 3y + 5Z =

2 Jawaban

  • [tex]1 ) 3x + 5y ^{2} + 4x + (-2y ^{2}) - 7 = 7 x + 3 y^{2} - 7 2) 2 y^{2} - x + 4 - y^{2} + 3x - 5 = y^{2} + 2x - 1 3) 6x - 4y ^{2} + z - 2x + y^{2} - 3z = 4x - 3y ^{2} - 2z[/tex]
  • 1.)
    3x + 5y² - 2 + 4x + (-2y²) - 7
    = (3x+4x) + (5y²-2y²) + (-2-7)
    = 7x + 3y² - 9

    2.)
    - (x+2y-z) + (2x-3y+5z)
    = -x - 2y + z + 2x - 3y + 5z
    = (-x+2x) + (-2y-3y) + (z+5z)
    = x - 5y + 6z

    Semoga bermanfaat. ^_^ **

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