What is the solution to 2x^2 + X - 1 = 2

Question

Emery Ware

Mathematics

30 June, 15:56

What is the solution to 2x^2 + X - 1 = 2

+3

Answers (2)

Know the Answer?

Edgar Vargas · Answer 1

Step-by-step explanation:

hello:

2x² + X - 1 = 2

2x² + X - 1 - 2 = 2-2

2x² + X - 3 = 0

(x-1) (2x+3) = 0

x-1=0 or 2x+3 = 0

x = 1 or x = - 3/2

Daria · Answer 2

Answer: x = square root of - x + 3 / 2

Step-by-step explanation:

2x^2 + x - 1 = 2

add 1 to both sides

2x^2 + x = 3

subtract x from both sides

2x^2 = - x + 3

square root both sides

2x = square root of - x + 3

divide by 2

x = square root of - x + 3 / 2