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18 July, 12:19

If 2x - 1 = 6, what is the value of 4x squared - 1

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  1. 18 July, 12:42
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    2x-1=6 so 2x=7 x=3.5

    3.5^2 = 12.25 x 4 = 49-1 = 48
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