What is the answer to 4=|4-x^2| ?

The answer to 4=|4-x^2| is x=-2sqrt(2)\lor x=0\lor x=2sqrt(2)

Solve for x: 4=|4-x^2|

The solution is x=-2sqrt(2)\lor x=0\lor x=2sqrt(2)

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4 = 4 - x^{2}

x = - 22 or x = 0 or x = 22

Decimal Notation

x = - 2.82842 \dots, x = 0, x = 2.82842 \dots

Solution steps

4 = 4 - x^{2}

Switch sides

4 - x^{2} = 4

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

4 - x^{2} = - 4 or 4 - x^{2} = 4

4 - x^{2} = - 4 or 4 - x^{2} = 4

(x = - 22 or x = 22) or x = 0

x = - 22 or x = 0 or x = 22

72 + r < - 432

16 + 8

7 - x = - 4

36 y^{4} - 121

8 x^{3} - 27 y^{3}

What is the answer to 4=|4-x^2| ?
The answer to 4=|4-x^2| is x=-2sqrt(2)\lor x=0\lor x=2sqrt(2)
Solve for x: 4=|4-x^2|
The solution is x=-2sqrt(2)\lor x=0\lor x=2sqrt(2)