Zredukuj: a)3a+3b-c-4a-3b+2c b) x²+2xy-3y²-2x²-y²-x²+2xy c)⅙t²+⅓k²t+⅓tk²-k²t+½t²-⅙tk² d)u²v²+¼uv-¹/₇u²v²-uv-½uv+u²v² Zapisz bez nawiasów: a) -(-a)+(-b) b) -(-a)-(-b) c)a+(-(-b)) d) a--(-(-b)) e) -(-(a-b)) f)a-(b-a)

Zredukuj: a)3a+3b-c-4a-3b+2c = -a +c b) x²+2xy-3y²-2x²-y²-x²+2xy = 2x² - 4y + 4xy c)⅙t²+⅓k²t+⅓tk²-k²t+½t²-⅙tk² = 4/6 t²-2/3k²t + 2/6tk² d)u²v²+¼uv-¹/₇u²v²-uv-½uv+u²v² = 3/7u²v²-5/4uv Zapisz bez nawiasów: a) -(-a)+(-b) = a-b b) -(-a)-(-b) = a+b c)a+(-(-b)) = a+b d) a--(-(-b)) = a+b e) -(-(a-b)) = a-b f)a-(b-a) = a-b+a

Zredukuj: a)3a+3b-c-4a-3b+2c = -a+c b) x²+2xy-3y²-2x²-y²-x²+2xy = -2x²+4xy-4y² c)⅙t²+⅓k²t+⅓tk²-k²t+½t²-⅙tk² d)u²v²+¼uv-¹/₇u²v²-uv-½uv+u²v² Zapisz bez nawiasów: a) -(-a)+(-b) = a-b b) -(-a)-(-b) = a+b c)a+(-(-b)) = a+b d) a--(-(-b)) = a-b e) -(-(a-b)) = a-b f)a-(b-a) = a-b+a = 2a-b

3a+3b-c-4a-3b+2c = -a+c x²+2xy-3y²-2x²-y²-x²+2xy=-2x²+4xy-4y² ⅙t²+⅓k²t+⅓tk²-k²t+½t²-⅙tk²=⅔t²-⅔k²t+⅙tk² u²v²+¼uv-¹/₇u²v²-uv-½uv+u²v²=13/7u²v²-5/4uv -(-a)+(-b)=a-b -(-a)-(-b)=a+b a+(-(-b))=a+b a-(-(-b))=a-b -(-(a-b))=a-b a-(b-a)=a-b+a=2a-b