Wykonaj dodawanie lub odejmowanie i zrudkuj wyrazu podobne a) (4x-2)+(6x-8) b) (4x-2)+(12x-15) c) (8x-2)-(12x+4) d) (6x-8)-(2x+5) e) (6x-8+2x)-(6x-4) f) (12x-8x)-(4x-12x) 2 wykonaj mnożenia jednomainów A) 2xy razy 5x b)12ab x 4a c)8xy x (-5)xy d) 6ad x (-5)dxa e)7axy x (-2)xay f) 12xy x (-3)xy
aneczka1598
Zad.1 a) (4x-2)+(6x-8)=4x-2+6x-8=10x-10 b) (4x-2)+(12x-15)=4x-2+12x-15=16x-17 c) (8x-2)-(12x+4)=8x-2-12x-4=-4x-6 d) (6x-8)-(2x+5)=6x-8-2x-5=4x-13 e) (6x-8+2x)-(6x-4)=6x-8+2x-6x+4=2x-4 f) (12x-8x)-(4x-12x)=12x-8x-4x+12x=12x
zad.2 a) 2x*5x=10x² b) 12ab*4a=48a²b c) 8xy*(-5)xy=-40x²y² d) 6ad * (-5)dxa=-30a²d²x e) 7axy*(-2)xay=-14a²x²y² f) 12xy*(-3)xy=-36x²y²
a) (4x-2)+(6x-8)=4x-2+6x-8=10x-10
b) (4x-2)+(12x-15)=4x-2+12x-15=16x-17
c) (8x-2)-(12x+4)=8x-2-12x-4=-4x-6
d) (6x-8)-(2x+5)=6x-8-2x-5=4x-13
e) (6x-8+2x)-(6x-4)=6x-8+2x-6x+4=2x-4
f) (12x-8x)-(4x-12x)=12x-8x-4x+12x=12x
zad.2
a) 2x*5x=10x²
b) 12ab*4a=48a²b
c) 8xy*(-5)xy=-40x²y²
d) 6ad * (-5)dxa=-30a²d²x
e) 7axy*(-2)xay=-14a²x²y²
f) 12xy*(-3)xy=-36x²y²