What is factor 21x^2-2x-3 ?

The solution to factor 21x^2-2x-3 is (3x+1)(7x-3)

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factor 21x^2-2x-3

factor

21 x^{2} - 2 x - 3

(3 x + 1) (7 x - 3)

Solution steps

21 x^{2} - 2 x - 3

Break the expression into groups

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

Factor out

7 x

from

21 x^{2} + 7 x : 7 x (3 x + 1)

Factor out

- 3

from

- 9 x - 3 : - 3 (3 x + 1)

= 7 x (3 x + 1) - 3 (3 x + 1)

Factor out common term

3 x + 1

= (3 x + 1) (7 x - 3)

a^{2} - a = 0

x^{2} + 5 x + 25

lo g_{4} (x) < 3

\frac{- 8}{6}

\frac{x}{- 3} - 3 \leq - 2