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Q: How do you solve the radical of x squared minus 7 squared?

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x = 1/2 [ 1 Â± i sqrt(7) ]

The square root of 28 minus the squared root of 7 =±2.64575131

I suggest you use the quadratic formula, with a = 3, b = -2, c = 7.

It depends. Is the entire expression squared or just radical 7?Assuming the latter, then 6 + (√7)^2 = 6 + 7 = 13.

7

6âˆš5 + 2âˆš5 - 7 = 8âˆš5 - 7, which cannot be simplified.

(x+4)(x-7)

4 x2

x(x - 7)

2(x + 7)(x - 7)

x(x - 7)

5-(-2) =7 The answer is 7.

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