Resolva a inequação (2x+1)(x-5) < 2(2(x+2)(x-4)?

Comments

• zonic-the-hedgehog

  May 2021

  (2x+1)(x-5) < 2(2(x+2)(x-4)

  <=> 2x² - 10x + x - 5 < 4( x² - 4x + 2x - 8 )

  <=> 2x² - 9x - 5 < 4( x² - 2x - 8 )

  <=> 2x² - 9x - 5 < 4x² - 8x - 32

  <=> 2x² + x - 27 > 0

      -1 - √217    -1 + √217

  <=> x < ▬▬▬▬▬ V x > ▬▬▬▬▬

        4        4