What is factor 21z^2-16z-20 ?

The solution to factor 21z^2-16z-20 is (3z+2)(7z-10)

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factor 21z^2-16z-20

factor

21 z^{2} - 16 z - 20

(3 z + 2) (7 z - 10)

Solution steps

21 z^{2} - 16 z - 20

Break the expression into groups

= (21 z^{2} + 14 z) + (- 30 z - 20)

Factor out

7 z

from

21 z^{2} + 14 z : 7 z (3 z + 2)

Factor out

- 10

from

- 30 z - 20 : - 10 (3 z + 2)

= 7 z (3 z + 2) - 10 (3 z + 2)

Factor out common term

3 z + 2

= (3 z + 2) (7 z - 10)

- x + 6 < 3

2 (\frac{1}{4})^{2}

(- \frac{5}{2})^{- 3}

81 + 18 j + j^{2}

(\frac{8 e ^{2}}{2 e ^{5}})^{- 1}

What is factor 21z^2-16z-20 ?
The solution to factor 21z^2-16z-20 is (3z+2)(7z-10)