A.(x-
| B.(a+3b)2=a2+9b2 | ||||
C.(a+3b)2=a2+3ab+9b2 | D.(2x+y)(2x-y)=2x2-y2 |
A.(a-b)(b-a) | B.(-x+1)(x-1) | C.(-a-b)(-a+b) | D.(-x-1)(x+1) |
A.(x-2)(2+x)=x2-2 | B.(x+2)(3x-2)=3x2-4 |
C.(ab-c)(ab+c)=a2b2-c2 | D.(-x-y)(x+y)=x2-y2 |
A.(3a+2b)(-3a+3b) | B.(3a-2b)(-3a+2b) |
C.(3a+2b)(-3a+2b) | D.(-3a-2b)(3a+2b) |
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