What is the answer to x=4sqrt(x+4) ?

The answer to x=4sqrt(x+4) is x=8(1+sqrt(2))

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x=4sqrt(x+4)

x = 4 x + 4

x = 8 (1 + 2)

Decimal Notation

x = 19.31370 \dots

Solution steps

x = 4 x + 4

Square both sides:

x^{2} = 16 x + 64

x^{2} = 16 x + 64

Solve

x^{2} = 16 x + 64 : x = 8 (1 + 2), x = 8 (1 - 2)

x = 8 (1 + 2), x = 8 (1 - 2)

Verify Solutions:

x = 8 (1 + 2)

True

, x = 8 (1 - 2)

False

The solution is

x = 8 (1 + 2)

x + 1 = x + 8

x + 1 + 1 + x = 0

w - 7 = 5

x + 11 + x + 4 = 7

2 y = 15 - 7 y

What is the answer to x=4sqrt(x+4) ?
The answer to x=4sqrt(x+4) is x=8(1+sqrt(2))
Solve for x: x=4sqrt(x+4)
The solution is x=8(1+sqrt(2))