What is factor 5x^2-21x+4 ?

The solution to factor 5x^2-21x+4 is (5x-1)(x-4)

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factor 5x^2-21x+4

factor

5 x^{2} - 21 x + 4

(5 x - 1) (x - 4)

Solution steps

5 x^{2} - 21 x + 4

Break the expression into groups

= (5 x^{2} - x) + (- 20 x + 4)

Factor out

x

from

5 x^{2} - x : x (5 x - 1)

Factor out

- 4

from

- 20 x + 4 : - 4 (5 x - 1)

= x (5 x - 1) - 4 (5 x - 1)

Factor out common term

5 x - 1

= (5 x - 1) (x - 4)

6 c^{4} - 18 b c

\frac{3}{4} \div \frac{3}{5}

(2^{2})^{x}

3 x + 2 x + 7

7 (- 6)