2.Zapisz w jak najprostszej postaci:
a)-4( 2x + 0,5)=
c)-3(1-2y)+1/2(6-12y)=
e)4*x-7/2-6*3-x/3=
3.Zapisz w postaci jak najprostszej sumy algebraicznej:
b)2(2x+3)(2x-1)=
c)-(x+7)(x-3)=
d)1-(z+5)(z-1)=
e)2k kwadrat -(k+3)(2k+4)=
f)-3(a+2b)(a-b)=3a kwadrat=
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2.
a)-4( 2x + 0,5)=-8x-2
c)-3(1-2y)+1/2(6-12y)=-3+6y+3-6y=0
e)4*x-7/2-6*3-x/3=4x-3 i 1/2-18-x/3=4x-21 i 1/2 – x/3
3. x^2- x do potęgi 2
b)2(2x+3)(2x-1)=(4x+6)(2x-1)= 8x^2-4x+12x-6= 8x^2+8x-6
c)-(x+7)(x-3)=(-x-7)(x-3)=-x^2+3x-7x+21=-x^2-4x+21
d)1-(z+5)(z-1)=1-(z^2-z+5z-5)=1-z^2+z-5z+5= 4-z^2-4z
e)2k^2-(k+3)(2k+4)= 2k^2-(2k^2+4k+6k+7)=2k^2-2k^2-4k-6k-7= -10k-7
f)-3(a+2b)(a-b)=3a^2=-3(a^2-ab+2ab-2b^2)= -3a^2+3ab-6ab+6b^2= -3a^2-3ab+6b^2