8x^2=72x
8x^2-72x=0
x(8x-72)=0
x=0 8x-72=0
x=0 8x=72 x2=9
Наим корень x=0
840 = 100%
1% = 840/100 = 8,4
966-840= 126
126÷8,4=15
Увеличилось на 15%
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8x^2=72x
8x^2-72x=0
x(8x-72)=0
x=0 8x-72=0
x=0 8x=72 x2=9
Наим корень x=0
840 = 100%
1% = 840/100 = 8,4
966-840= 126
126÷8,4=15
Увеличилось на 15%