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3 years ago

Plz help!!!!!!!!!!!!!

Mathematics

2 answers:

vaieri [72.5K]3 years ago

6 0

Answer: The correct answer is -2,5/2 which is the last answer.

Step-by-step explanation:

* Hopefully the work below helps:)Mark me the brainliest:)!!

Vera_Pavlovna [14]3 years ago

4 0

Answer: $\bold{\{-2, \dfrac{5}{2}\}}$

Step-by-step explanation:

2x² - x - 10 = 0

Replace -x with 4x - 5x and factor using Grouping Method:

2x² + 4x -5x - 10 = 0

2x(x + 2) -5(x + 2) = 0

(2x - 5) (x + 2) = 0

2x - 5 = 0 and x + 2 = 0

2x = 5 and x = -2

x = 5/2

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