Odpowiedź:
[tex]a)x(3x - 1) = 3 {x}^{2} - \times \\ c)x(6y - 0.5x) = 6xy - {0.5x}^{2} \\ e)a(2a + b + 5) = {2a}^{2} + ab + 5a \\ g)a(1.7 - 0.3a - {a}^{2} ) = 1.7a - {0.3a}^{2} - {a}^{3} \\ i)b(2.4ab + 2 \frac{1}{5}a - 1.1b) = 2.4a {b}^{2} + 2 \frac{1}{5} ab - 1.1 {b}^{2} [/tex]
a) x(3x-1)=3x²-x
c) x(6y-0,5x)=6xy-0,5x²
e) a(2a+b+5)=2a²+ab+5a
g) a(1,7-0,3a-a²)=1,7a-0,3a²-a³
i) b(2,4ab+2 1/5a-1,1b)=2,4ab+2 1/5ab-1,1b²
