Zadanie 4
d) 2x(3x - 4) +x(5 - 2x ) = 6x2 - 8x + 5x - 2x2 = 4x2 - 3x
e) 3u(2 - 4u) - 5u(u + 3) = 6u - 12u2 - 5u2 + 15u = 21u - 17u2
f) -5t (2t - 1) - 2t(3 - 5t) = - 10t2 + 5t - 6t + 10t2 = - 1t
Zadanie5
a) 2(3p - 4) + 4 - 2p / 2 = 6p - 8 + 2 - 2p = 4p -6
b) 3(2 - 5m) - 12m +9/3 = 6 - 15m - 12m + 3 = 9 - 27m
c) -5(4t - 2) - 30t - 5/5 = -20t + 10 - 30t = -50t + 10
d) 6x - 14 /2 + 6=15x/3 = 6x - 7 + 2 + 15x = 21x -5
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Zadanie 4
d) 2x(3x - 4) +x(5 - 2x ) = 6x2 - 8x + 5x - 2x2 = 4x2 - 3x
e) 3u(2 - 4u) - 5u(u + 3) = 6u - 12u2 - 5u2 + 15u = 21u - 17u2
f) -5t (2t - 1) - 2t(3 - 5t) = - 10t2 + 5t - 6t + 10t2 = - 1t
Zadanie5
a) 2(3p - 4) + 4 - 2p / 2 = 6p - 8 + 2 - 2p = 4p -6
b) 3(2 - 5m) - 12m +9/3 = 6 - 15m - 12m + 3 = 9 - 27m
c) -5(4t - 2) - 30t - 5/5 = -20t + 10 - 30t = -50t + 10
d) 6x - 14 /2 + 6=15x/3 = 6x - 7 + 2 + 15x = 21x -5