What are the solutions to the equation x^2-x+0.21=0 ?

The solutions to the equation x^2-x+0.21=0 are x= 7/10 ,x= 3/10

Find the zeros of x^2-x+0.21=0

The zeros of x^2-x+0.21=0 are x= 7/10 ,x= 3/10

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x^{2} - x + 0.21 = 0

x = \frac{7}{10}, x = \frac{3}{10}

Decimal Notation

x = 0.7, x = 0.3

Solution steps

x^{2} - x + 0.21 = 0

Multiply both sides by

100

100 x^{2} - 100 x + 21 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 100 ) \pm ( - 100 ) ^{2} - 4 \cdot 100 \cdot 21}{2 \cdot 100}

(- 100)^{2} - 4 \cdot 100 \cdot 21 = 40

x_{1, 2} = \frac{- ( - 100 ) \pm 40}{2 \cdot 100}

Separate the solutions

x_{1} = \frac{- ( - 100 ) + 40}{2 \cdot 100}, x_{2} = \frac{- ( - 100 ) - 40}{2 \cdot 100}

x = \frac{- ( - 100 ) + 40}{2 \cdot 100} : \frac{7}{10}

x = \frac{- ( - 100 ) - 40}{2 \cdot 100} : \frac{3}{10}

The solutions to the quadratic equation are:

x = \frac{7}{10}, x = \frac{3}{10}

3 x^{2} - 6 x + 2 = 0

7 x^{2} + 2 x - 2 = 0

3 X^{2} - 1 = 0

y, f = 13 - x^{3} - y^{2} - z^{2} - 12 x y - 2 z

4 x^{2} = 5 x - 6

What are the solutions to the equation x^2-x+0.21=0 ?
The solutions to the equation x^2-x+0.21=0 are x= 7/10 ,x= 3/10
Find the zeros of x^2-x+0.21=0
The zeros of x^2-x+0.21=0 are x= 7/10 ,x= 3/10