Witam !
Proszę o rozwiązanie zadań z wyrażeń algebraicznych , treść w załącznikach
zadania 4.8 , 4.9 , 4.25 , 4.27 , 4.28 , 4.32
Ps. Oczywiście daje Naj xD
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Zad. 4.8
a) 2+2+2=8
b) -3*4-1-1=-14
c) 1+2-0,5-0,75=1,75
d)
Zad. 4.9
Zad. 4.25
a) a+2a-3a-4a=-4a
b) (3a-2b)+(4b-2a)=3a-2b+4b-2a=a+2b
c) 4b-(-2b)=4b+2b=6b
d) 4a-(2b+3a)+b=4a-2b-3a+b=a-b
Zad.4.27
2y-3(2y-x)+2(3x-y)-4x=2y-6y+3x+6x-2y-4x=5x-6y
Zad.4.28
a) (4x+5)+(5x-7)=4x+5+5x-7=9x-2
b) 2x-6-(-2x+4)=2x-6+2x-4=4x-10
c)
d) 3-3(2x+4)-(x-5)=3-6x-12-x+5=-7x-4
e)
f) -(2,4y+6)-(3,6y+5)-(2y+8)=-2,4y-6-3,6y-5-2y-8=-8y-19
Zad. 4.32
a) 4(2x-1)-(x-1)(x+2)=8x-4-x^2-2x+x+2=-x^2+7x-2
b) -3(x+3)+(1-x)(x+3)=-3x-9+x+3-x^2-3x=-x^2-5x-6
c) 2x-2x(4-x)+2x^2=2x-8x+2x^2+2x^2=4x^2-6x
d) (x-1)(x-2)(x-3)=(x^2-2x-x+2)(x-3)=x^3-3x^2-2x^2+6x-x^2+3x+2x-6=x^3-6x^2+11x-6