70(100-10x)x%=168
7(10-x)x=168
10x-x²=24
x²-10x+24=0
(x-4)(x-6)=0
x1=4 x2=6
70(100-10x)x%=168怎么算?
70(100-10x)x%=168怎么算?
數(shù)學(xué)人氣:707 ℃時(shí)間:2020-06-08 22:57:32
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