math

Completely factor the expression 2a3 − 128. A. 2(a − 4)3
B. 2(a − 4)(a2 + 4a + 16)
C. 2(a3 − 64)
D. Prime

Completely factor the expression 7(x − y) − z(x − y). A. Prime
B. (x − y)(7 − z)
C. (x − y)(7 + z)
D. (x − y)2(7 − z)3

Find the product of –3a3b(2a0b4 − 4a2b3) A. –6b5 + 14a5b4
B. –6b4 + 12a6b3
C. 14a5b4 − 6b5
D. 12a5b4 − 6a3b5

Completely factor the expression r2 − 2r + 1. A. (r + 1)(r − 1)
B. (r − 1)(r − 1)
C. r(r − 2) + 1
D. Prime

Simplify the expression 2ab4 − 3a2b2 − ab4 + a2b2. A. a2b8 − a2b8 − 2a4b4
B. 0
C. 2a2b8 − 3a4b4 D. ab4 − 2a2b2

Completely factor the expression a2 + 4b − ab − 4a. A. (a + b)(a − 4)
B. Prime
C. (a − b)(a − 4)
D. (a + b)(a + 4)

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  1. plb help me i am geting confuse

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  2. and this please
    Find the product of (x − 2y)2. A. x2 + 4xy + 4y2
    B. x2 + 2xy + 4y2
    C. x2 − 4xy + 4y2
    D. x2 + 4y2

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