rozwiąż : 1. 5(x²-3x)-2(3x+1)=2. -7(2²-x)+(5a²-x)=3. -(-3b²+c)-2(2b²-3c)=4. 3(x-y)-2(x-3y)=
1. 5(x²-3x)-2(3x+1)= 5x²-15x-6x-2= 5x²-21x-2
2. -7(2²-x)+(5a²-x)= (-14)²-7x + 5a²-x=196 -7x + 5a²-x = 196 -8x + 5a²
3. -(-3b²+c)-2(2b²-3c)=3b²-c-4b²-6c=-b²-7c
4. 3(x-y)-2(x-3y)=3x-3y-2x+6y=x+3xProsze ;D
5(x²-3x)-2(3x+1)=5x²-15x-6x-2=5x²-9x-2
-7(2²-x)+(5a²-x)=-28+7x+5a²-x=-28+6x+5a²
-(-3b²+c)-2(2b²-3c)=3b²-c-4b²+6c=-b²+5c
3(x-y)-2(x-3y)=3x-3y-2x+6y=x+3y
Moim zdaniem tak ma być ; p Pozdro
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1. 5(x²-3x)-2(3x+1)= 5x²-15x-6x-2= 5x²-21x-2
2. -7(2²-x)+(5a²-x)= (-14)²-7x + 5a²-x=196 -7x + 5a²-x = 196 -8x + 5a²
3. -(-3b²+c)-2(2b²-3c)=3b²-c-4b²-6c=-b²-7c
4. 3(x-y)-2(x-3y)=3x-3y-2x+6y=x+3x
Prosze ;D
5(x²-3x)-2(3x+1)=5x²-15x-6x-2=5x²-9x-2
-7(2²-x)+(5a²-x)=-28+7x+5a²-x=-28+6x+5a²
-(-3b²+c)-2(2b²-3c)=3b²-c-4b²+6c=-b²+5c
3(x-y)-2(x-3y)=3x-3y-2x+6y=x+3y
Moim zdaniem tak ma być ; p Pozdro