Zredukuj wyrazy podobne. a) -4x -7-3x+7 b) x-2xy +1/2x- 1/3xy c)-xkwadrat+ykwadrat-2xkwadrat-2ykwadrat d) -x kwadrat +2x-3x+xkwadrat e) 4x+4-7x-1/2 f)-2ab+12a-4ab-16a
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a)-4x -7-3x+7=-7x
b) x-2xy +1/2x- 1/3xy= 3/2x-6/3xy-1/3xy=1 i 1/2x-2 i 1/3 xy
c)-x²+y²-2x²-2y²=-3x²-y²
d) -x ²+2x-3x+x²=-x
e) 4x+4-7x-1/2=-3x-7/2=-3x-3 i 1/2
f)-2ab+12a-4ab-16a=-6ab-4a
a)...=-7x
b)...=1 1/2x -2 1/3xy
c)...=-3x²-y²
d)...= -x
e)...=-3x +3 1/2
f)...=-6ab -4a