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3a+2b=5ab 5y﹣3y=2 3x2y﹣2yx2=x2y ﹣3x+5x=﹣8x
7a+a=7a2 3x2y-2yx2=x2y 5y-3y=2 3a+2b=5ab
x2y-2xy2=-x2y 2a+3b=5ab -3ab-3ab=-6ab a3+a2=a5
2a+3b=5ab (x+2)2=x2+4 (ab3)2=ab6 (﹣1)0=1
2a+3b=5ab 7ab-3ab=4
x2y﹣2xy2=﹣x2y 2a+3b=5ab a3+a2=a5 ﹣3ab﹣3ab=﹣6ab
x2y﹣2xy2=﹣x2y 2a+3b=5ab a3+a2=a5 ﹣3ab﹣3ab=﹣6ab
5ab-3ab=2 2a+3b=5ab
2a+3b=5ab; a3-a2=a; a2+2a2=3a2; (a-1)0=1.
3a+2b=5ab 5y2-3y2=2 2ab-ab=ab 3x2y-5x2y=2x2y