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5x-10-x²+3x+x²-8x=-10
b)-2x(3-x)-(2x²- 6x+3)
-6x+2x²-2x²+6x-3=-3
c) -6x(3x²-1)-3(2x+4)+18x³
-18x³+6x-6x-12+18x³=-12
d)-(12x²+3x-5)+3x(4x+1)-7
-12x²-3x+5+12x²+3x-7=-2
w przypadku D
5x-10-x²+3x+x²-8x=-10
b)-2x(3-x)-(2x²- 6x+3)
-6x+2x²-2x²+6x-3=-3
c) -6x(3x²-1)-3(2x+4)+18x³
-18x³+6x-6x-12+18x³=-12
d)-(12x²+3x-5)+3x(4x+1)-7
e)-12x²-3x+5+12x²+3x-7=-2
najwyzsza wartosc to -2
b)-2x(3-x)-(2x²- 6x+3) = -6x+2x²-2x²+6x-3 = -3
c) -6x(3x²-1)-3(2x+4)+18x³= -18x³+6x - 6x-12 +18x³ = -12
d)-(12x²+3x-5)+3x(4x+1)-7 = -12x²-3x+5+12x²+3x-7 = -2
Najwieksza jest w 'd'
Pozdrawiam! :)