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(ab)2=ab2 a2•a3=a4 a5+a5=2a5 4m8÷2m2=2m4
x4·x4=x16 (a3)2·a4=a9 (ab2)3÷(-ab)2=-ab4 (a6)2÷(a4)3=1
6a+a=6a2 ﹣2a+5b=3ab 4m2n﹣2mn2=2mn 3ab2﹣5b2a=﹣2ab2
x4·x4=x16 (a3)2·a4=a9 (ab2)3÷(-ab)2=-ab4 (a6)2÷(a4)3=1
3x-5x=2x 3x2+x=4x3 -7a+4b=-11ab -3ab2-ab2= -4ab
2a+3b=5ab (x+2)2=x2+4 (ab3)2=ab6 (﹣1)0=1
(a+b)(a+2b)=a2+3ab+2b2 (3a+b)(a+b)=3a2+4ab+b2 (2a+b)(a+b)=2a2+3ab+b2 (3a+2b)(a+b)=3a2+5ab+2b2
6a+a=7a2 ﹣2a+5b=3ab 4m2n﹣2mn2=2mn 3ab2﹣5b2a=﹣2ab2
6a+a=6a2 ﹣2a+5b=3ab 4m2n﹣2mn2=2mn 3ab2﹣5b2a=﹣2ab2
2+a=2a 2a﹣3a=1 3a+2b=5ab 5ab﹣ab=4ab
3a+4b=7ab (ab3)2=ab6 (a+2)2=a2+4 x12÷x6=x6
2+a=2a 2a﹣3a=﹣1 (﹣a)2•a3=a5 8ab÷4ab=2ab
7a+a=7a2 -2a+8b=6ab -4m2n-2m2n=-6m2n 3ab2-5b2a=2ab2
6a+a=6a2 ﹣2a+5b=3ab 4m2n﹣2mn2=2mn 3ab2﹣5b2a=﹣2ab2
2a+3b=5ab (﹣1)0=1 (ab3)2=ab6 (x+2)2=x2+4