Factor 20aw^2+8az-10bw^2-4bz+5cw^2+2cz

$20 a w^{2} + 8 a z - 10 b w^{2} - 4 b z + 5 c w^{2} + 2 c z$

Regroup terms.

$20 a w^{2} - 10 b w^{2} + 5 c w^{2} + 8 a z - 4 b z + 2 c z$

Factor $5 w^{2}$ out of $20 a w^{2} - 10 b w^{2} + 5 c w^{2}$ .

Factor $5 w^{2}$ out of $20 a w^{2}$ .

$5 w^{2} (4 a) - 10 b w^{2} + 5 c w^{2} + 8 a z - 4 b z + 2 c z$

Factor $5 w^{2}$ out of $- 10 b w^{2}$ .

$5 w^{2} (4 a) + 5 w^{2} (- 2 b) + 5 c w^{2} + 8 a z - 4 b z + 2 c z$

Factor $5 w^{2}$ out of $5 c w^{2}$ .

$5 w^{2} (4 a) + 5 w^{2} (- 2 b) + 5 w^{2} (c) + 8 a z - 4 b z + 2 c z$

Factor $5 w^{2}$ out of $5 w^{2} (4 a) + 5 w^{2} (- 2 b)$ .

$5 w^{2} (4 a - 2 b) + 5 w^{2} (c) + 8 a z - 4 b z + 2 c z$

Factor $5 w^{2}$ out of $5 w^{2} (4 a - 2 b) + 5 w^{2} (c)$ .

$5 w^{2} (4 a - 2 b + c) + 8 a z - 4 b z + 2 c z$

Factor $2 z$ out of $8 a z - 4 b z + 2 c z$ .

Factor $2 z$ out of $8 a z$ .

$5 w^{2} (4 a - 2 b + c) + 2 z (4 a) - 4 b z + 2 c z$

Factor $2 z$ out of $- 4 b z$ .

$5 w^{2} (4 a - 2 b + c) + 2 z (4 a) + 2 z (- 2 b) + 2 c z$

Factor $2 z$ out of $2 c z$ .

$5 w^{2} (4 a - 2 b + c) + 2 z (4 a) + 2 z (- 2 b) + 2 z (c)$

Factor $2 z$ out of $2 z (4 a) + 2 z (- 2 b)$ .

$5 w^{2} (4 a - 2 b + c) + 2 z (4 a - 2 b) + 2 z (c)$

Factor $2 z$ out of $2 z (4 a - 2 b) + 2 z (c)$ .

$5 w^{2} (4 a - 2 b + c) + 2 z (4 a - 2 b + c)$

Factor $4 a - 2 b + c$ out of $5 w^{2} (4 a - 2 b + c) + 2 z (4 a - 2 b + c)$ .

Factor $4 a - 2 b + c$ out of $5 w^{2} (4 a - 2 b + c)$ .

$(4 a - 2 b + c) (5 w^{2}) + 2 z (4 a - 2 b + c)$

Factor $4 a - 2 b + c$ out of $2 z (4 a - 2 b + c)$ .

$(4 a - 2 b + c) (5 w^{2}) + (4 a - 2 b + c) (2 z)$

Factor $4 a - 2 b + c$ out of $(4 a - 2 b + c) (5 w^{2}) + (4 a - 2 b + c) (2 z)$ .

$(4 a - 2 b + c) (5 w^{2} + 2 z)$