prosze o rozwiązanie zadania, jak najszybciej.
zad1
wykonaj dodawanie i odejmowanie sum algebraicznych
a) 2+y i 6+y
b)4+2x i 5-x
zad2
wykonaj mnozenie
a) 2(-3x+2y-1)
b)4(x-y+1)
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a) 2+y i 6+y
2+y+6+y = 2y+8
2+y-(6+y) = 2+y-6-y = -4
b)4+2x i 5-x
4+2x+5-x = x+9
4+2x-(5-x) = 4+2x-5+x = 3x-1
zad2
wykonaj mnozenie
a) 2(-3x+2y-1) = -6x+4y-2
b)4(x-y+1) = 4x-4y+4
1.
a)
2+y + 6+y = 8+2y
2+y - (6+y) = 2+y-6-y = -4
b)
4+2x + 5-x = 9+x
4+2x - (5-x) = 4+2x-5+x = -1+3x
2.
a)
2(-3x+2y-1) = -6x+4y-2
b)
4(x-y+1) = 4x-4y+4