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1. Factor
15y3 z + 5yz2 − 10y2 z 3
5yz(3y2+ z− 2y z 2)
2. Factor by grouping
8y− 40− x 2 y+ 5x2
(8y− 40)+ (− x 2 y+ 5x2)
8( y− 5)− x 2( y− 5)
( y− 5)(8− x 2 )
3. Factor
64y2+ 112y+ 49
(8y+ 7)2
4. Factor
2
10x − 99x− 63
a. (2x− 21)(5x+ 3)
2
10x − 27x− 63
b. (5x− 21)(2x+ 3)
2
10x + 61x− 63
c. (10x− 9)( x+ 7)
10x2+ 9x− 63
d. (10x− 21)( x+ 3)
5. Factor
x 5+ 10x4+ 25x3
x 3 ( x 2+ 10x+ 25)
x 3 ( x+ 5)2
6. Factor
8
x − 625
4 2
2
( x ) − 25
4
4
( x + 25)( x − 25)
4
2
2
(x + 25)( x − 5)( x +...