Question

Find the value of c if the value of 2m^2 + m - c equals 6, when m = -1.

Answer 1

Answer:

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Answer 2

Answer:

c = -3

Step-by-step explanation:

2m² + m-c = 6                                                                      m= -1

[2(-1)]² + (-1) - c = 6

(-2)² - 1 - c = 6

4 - 1 - c = 6

3 - c = 6

3 - 6 = c

-3 = c

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