x³ - 100x = x(x² - 100) = x(x² - 10²) = x(x - 10)(x + 10)
12 км : 2 = 6 км
6км :1=6 км
6 км :2= 3 км
6км+3км=9 км
1. = с ^ ( ( 1/2 ) + ( 1/3 )) = с ^ ( 3/6 + 2/6 ) = с ^ 5/6
2. = y ^ ( - 1/3 + 1/4 ) = y ^ ( - 4/12 + 3/12 ) = y ^ ( - 1/12 ) = 1 / ( y ^12 )
3. = x ^ ( 2 + ( 1/2 )) = x ^ ( 5/2 )
3x^2-x-2=0
D= (-1)^2-4*3*(-2)= 25
x1= 1-5/6= -2/3
x2= 1+5/6= 1