A.25 | B.m+1 | C.5 | D.26 |
A.a(x+y)="ax+ay" |
B.x2﹣4x+4=x(x﹣4)+4 |
C.10x2﹣5x=5x(2x﹣1) |
D.x2﹣16+6x=(x+4)(x﹣4)+6x |
A.y(x2﹣2xy+y2) | B.x2y﹣y2(2x﹣y) | C.y(x﹣y)2 | D.y(x+y)2 |
A.x3•x2=x6 | B.3a2+2a2=5a2 | C.a(a﹣1)=a2﹣1 | D.(a3)4=a7 |
A. | B. | C. | D. |
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