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a(x-y)=ax-ay x2+2x+1=x(x+2)+1 (x+1)(x+3)=x2+4x+3 x3-x=x(x+1)(x-1)
-2ab2+4a2b=2ab(-b+2a) 3m(a-b)-9n(b-a)=3(a-b)(m+3n) -5ab+15a2bx+25ab3y=-5ab(-3ax-5b2y); 3ay2-6ay-3a=3a(y2-2y-1)
a(x-y)=ax-ay x2+2x+1=x(x+2)+1 (x+1)(x+3)=x2+4x+3 x3-x=x(x+1)(x-1)
a(x-y)=ax-ay x2+2x+1=x(x+2)+1 (x+1)(x+3)=x2+4x+3 x3-x=x(x+1)(x-1)
a2-4ab+4b2=(a-2b)2 ax+ay+a=a(x+y)+a
a(x﹣y)=ax﹣ay x2﹣2x+3=x(x﹣2)+3 =x2+3x﹣4 x3﹣2x2+x=x(x﹣1)2
ax2﹣ay2=a(x2+y2) x2+2x+1=x(x+2)+1 (x+y)(x﹣y)=x2﹣y2 x2+4x+4=(x+2)2
a(x+y)=ax+ay; x2-4x+4=x(x-4)+4; 10x2-5x=5x(2x-1); x2-16+3x=(x+4)(x-4)+3x
a(x﹣y)=ax﹣ay x2+2x+1=x(x+2)+1 x3﹣x=x(x+1)(x﹣1) (x+1)(x+3)=x2+4x+3
a(x﹣y)=ax﹣ay x2+2x+1=x(x+2)+1 (x+1)(x+3)=x2+4x+3 x3﹣x=x(x+1)(x﹣1)