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

## Answers ( )

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