What is factor 21x^2-58x+21 ?

The solution to factor 21x^2-58x+21 is (7x-3)(3x-7)

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factor 21x^2-58x+21

factor

21 x^{2} - 58 x + 21

(7 x - 3) (3 x - 7)

Solution steps

21 x^{2} - 58 x + 21

Break the expression into groups

= (21 x^{2} - 9 x) + (- 49 x + 21)

Factor out

3 x

from

21 x^{2} - 9 x : 3 x (7 x - 3)

Factor out

- 7

from

- 49 x + 21 : - 7 (7 x - 3)

= 3 x (7 x - 3) - 7 (7 x - 3)

Factor out common term

7 x - 3

= (7 x - 3) (3 x - 7)

x^{2} + 57 x + 602

\frac{4 - 5 x}{x + 2} < 0

2 \cdot \frac{2}{3} \cdot (\frac{2}{3})^{- 3} \cdot (- \frac{1}{3})^{- 1}

x \geq - 6 - \frac{1}{4} (- 6 x + 5)

1 0^{2} + 2 4^{2} = x^{2}

What is factor 21x^2-58x+21 ?
The solution to factor 21x^2-58x+21 is (7x-3)(3x-7)