how can i simply the following?
回答 (1)
2007-05-29 3:08 am
✔ 最佳答案
imagine x^2 as x*x and x^3 as x*x*x and so on. Another help is the commutative, associative, and distributive properties. here are some example equations. x+y=y+x, (xy)z=x(yz), and (x-y)z=xz-yz. Exceptions are loga+logb does not equal log(a+b) or absx+ absy does not equal abs(x+y) or x-y does not equal y-x.
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