Zad 2,3 i 4. Proszę to koniecznieeee !!!!!!!!!!!!!!!!!!!!!!
2.
a) =2ab-6a^2-8a-4ab-8b^2+14b+6a^2+8b=14b-2ab-8b^2
b) =-6x^2-12xy-5,4x-10xy+12x^2+4x=22xy+6x^2-1.4x
c) =-0,5x+2y-3x^2+3xy-6x+3x^2=2y+3xy-6,5x
d) =-3m^2n+9m^2-12mn+6m-8m^2n+12mn=-11m^2n+9m^2+6m
3.
a) =15ab-6b^2+2a^2-2ab-3ab+3b^2=10ab-3b^2+2a^2
b) =4x^2+4xy+3x^2-3xy-5xy=7x^2-4xy
c) =15a^2b-4a^2b-28a^2+a^2b-13a^2-b+13=12a^2b-41a^2-b+13
d) =-4x^2y+5ax+3^2y-3y+x^2y-5ax=-3y
e) =2ab+10a-b-5-3ab+6a+5b-10=-ab+16a+4b-15
f) =4ax-4ay-2ax-2ay-2ax+xy+2a^2-ay=-7ay+xy+2a^2
4.
a) =5x^2-5x+x+y-2x^2-2xy+2xy-y=3x^2-4x=3+4=7
b) =ab+a-2b^2-2b-3a^2-3ab+6a-7a+2b^2=-2ab-2b-3a^2=-4+2-12=-14
c) =6x^2+2x-3xy-y+x^2+x-x-1+3y=7x^2+2x-y-1=28-4-0,5-1=22,5
d) =a^2-b^2-2a^2-4ab0b^2=-a^2-2b^2-4ab=-1/4-2+2=-1/4
e) =3b^2-6b+b-2+b^2+4b-4b-16-b^2+2b-1=3b^2-3b-19=12-19+6=-1
f) =x^2-x-4xy+4y-x+1-4x^2+12xy-8x-8xy-4y=-3x^2-10x+1=-3+10+1=8
Jak masz na końcu ćwiczeń odpowiedzi to sprawdź bo spieszyłam się i mogłam zrobić gdzieś błąd:)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2.
a) =2ab-6a^2-8a-4ab-8b^2+14b+6a^2+8b=14b-2ab-8b^2
b) =-6x^2-12xy-5,4x-10xy+12x^2+4x=22xy+6x^2-1.4x
c) =-0,5x+2y-3x^2+3xy-6x+3x^2=2y+3xy-6,5x
d) =-3m^2n+9m^2-12mn+6m-8m^2n+12mn=-11m^2n+9m^2+6m
3.
a) =15ab-6b^2+2a^2-2ab-3ab+3b^2=10ab-3b^2+2a^2
b) =4x^2+4xy+3x^2-3xy-5xy=7x^2-4xy
c) =15a^2b-4a^2b-28a^2+a^2b-13a^2-b+13=12a^2b-41a^2-b+13
d) =-4x^2y+5ax+3^2y-3y+x^2y-5ax=-3y
e) =2ab+10a-b-5-3ab+6a+5b-10=-ab+16a+4b-15
f) =4ax-4ay-2ax-2ay-2ax+xy+2a^2-ay=-7ay+xy+2a^2
4.
a) =5x^2-5x+x+y-2x^2-2xy+2xy-y=3x^2-4x=3+4=7
b) =ab+a-2b^2-2b-3a^2-3ab+6a-7a+2b^2=-2ab-2b-3a^2=-4+2-12=-14
c) =6x^2+2x-3xy-y+x^2+x-x-1+3y=7x^2+2x-y-1=28-4-0,5-1=22,5
d) =a^2-b^2-2a^2-4ab0b^2=-a^2-2b^2-4ab=-1/4-2+2=-1/4
e) =3b^2-6b+b-2+b^2+4b-4b-16-b^2+2b-1=3b^2-3b-19=12-19+6=-1
f) =x^2-x-4xy+4y-x+1-4x^2+12xy-8x-8xy-4y=-3x^2-10x+1=-3+10+1=8
Jak masz na końcu ćwiczeń odpowiedzi to sprawdź bo spieszyłam się i mogłam zrobić gdzieś błąd:)