12版温州市七年级数学(针对性训练)单元检测(十一)答案谁有,求求!
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4倍^ 2yz 12 X ^ 3Y = 4X ^ 2Y(Z +3 X)
-3X ^ 2-12X-12 = -3(X ^ 2 +4 X +4)= -3(X +2 )^ 2
(X,Y)^ 2 - (YZ)^ 2 =(XY + YZ)(XY-Y + Z)=(XZ)(X-2Y + Z)
X ^ 2 + 5×6 =(X-1)(X +6)
斧头+ BXY + BX + AX??Y = AX(1 + Y)+ BX(1 + Y)= X(1 + Y)(A + B)
-3X ^ 2-12X-12 = -3(X ^ 2 +4 X +4)= -3(X +2 )^ 2
(X,Y)^ 2 - (YZ)^ 2 =(XY + YZ)(XY-Y + Z)=(XZ)(X-2Y + Z)
X ^ 2 + 5×6 =(X-1)(X +6)
斧头+ BXY + BX + AX??Y = AX(1 + Y)+ BX(1 + Y)= X(1 + Y)(A + B)
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