Answer:

1 is the right answer

Step-by-step explanation:

See The Attachment

Verified answer

Answer: m = 1

Step-by-step explanation:

2x^2 + 4x - m =  5

Given, x = 1

2 (1)^2 + 4(1) - m = 5

2 (1) + 4 - m = 5

2 + 4 - m = 5

6 - m = 5

- m = 5 - 6

- m = -1

m = 1

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