What is the answer to |x^2-10x+21|=0 ?

The answer to |x^2-10x+21|=0 is x=3\lor x=7

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|x^2-10x+21|=0

x^{2} - 10 x + 21 = 0

x = 3 or x = 7

Solution steps

x^{2} - 10 x + 21 = 0

Apply absolute rule: If

∣ u ∣ = 0

then

u = 0

x^{2} - 10 x + 21 = 0

x^{2} - 10 x + 21 = 0 : x = 7, x = 3

x = 3 or x = 7

22 = ∣ x + 10 ∣

∣ 6 w + 9 ∣ = 3

∣ 5 y - 10 ∣ = 15

∣ - 9 x ∣ = 63

∣ - 9 x ∣ = 72

What is the answer to |x^2-10x+21|=0 ?
The answer to |x^2-10x+21|=0 is x=3\lor x=7
Solve for x: |x^2-10x+21|=0
The solution is x=3\lor x=7