Question

solve the problem ..........by completing square... ​

Answer 1

Answer:

Hence, x = 1 or 2.

Step-by-step explanation:

2x2 + x -4=0

2x2 + x = 4

x2 + x/2 + 1/4 = 2+1/4

(x + 1/2)2 = 9/4

(x + 1/2) = ± 3/2

x = 3/2 - 1/2 = 1

or

x = 3/2 + 1/2 = 2

Hence, x = 1 or 2.

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Answer 2

refer to the attachment!!!!