What is factor 4x^2+31x+21 ?

The solution to factor 4x^2+31x+21 is (4x+3)(x+7)

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factor 4x^2+31x+21

factor

4 x^{2} + 31 x + 21

(4 x + 3) (x + 7)

Solution steps

4 x^{2} + 31 x + 21

Break the expression into groups

= (4 x^{2} + 3 x) + (28 x + 21)

Factor out

x

from

4 x^{2} + 3 x : x (4 x + 3)

Factor out

7

from

28 x + 21 : 7 (4 x + 3)

= x (4 x + 3) + 7 (4 x + 3)

Factor out common term

4 x + 3

= (4 x + 3) (x + 7)

\frac{5}{9} - \frac{2}{5}

(3 x y - 1) (4 x y + 2)

\frac{- 2}{12}

x (x + 2)^{3}

\frac{1}{4} - \frac{2}{9}