square root of 8
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The value of x is 7
x = 2.1374586088176875 x = -1.6374586088176875
x = 5 / 6squared + 7
sqrt(4x+7) -4 = sqrt(4x-1) squared : (sqrt(4x+7) -4)2 = 4x-1 (4x+7) - 2x4xsqrt(4x+7) +16 = 4x-1 -8xsqrt(4x+7) = -24 sqrt(4x+7) = -24/-8 = 3 squared : 4x+7 = 32 = 9 4x = 9-7 = 2 then x=1/2
I suggest you use the quadratic formula, with a = 3, b = -2, c = 7.