Solve the quadratic inequalities, by either graphing, or pure algebraic method: brainliest if use algebraic 2x^2 – x – 10

Question

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

2x^2 – x – 10 ≥ 0

in progress 0
Melody 2 weeks 2021-10-01T19:04:53+00:00 1 Answer 0

Answers ( )

    0
    2021-10-01T19:06:07+00:00

    Answer:

    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

Leave an answer

45:7+7-4:2-5:5*4+35:2 =? ( )