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2 October, 02:26

Solve the quadratic inequalities, by either graphing, or pure algebraic method:

brainliest if use algebraic

2x^2 - x - 10 ≥ 0

+2
Answers (1)
  1. 2 October, 04:55
    0
    less than/equal to - 2

    Or, greater than/equal to 2.5

    Step-by-step explanation:

    2x² - x - 10 ≥ 0

    2x² - 5x + 4x - 10 ≥ 0

    x (2x - 5) + 2 (2x - 5) ≥ 0

    (x + 2) (2x - 5) ≥ 0

    Roots: - 2, 5/2

    x" - 2 or x"5/2
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