A. -(-x-y-2)-(4y+5x-9)B. -(-3a-2c-1)+(6a-11c+11)C.-(x^2+x+1)-(-x^2+x-1).... Question from @oliwiabalcerowska1

oliwiabalcerowska1 @oliwiabalcerowska1

March 2022 2 7 Report

A.
-(-x-y-2)-(4y+5x-9)
B.
-(-3a-2c-1)+(6a-11c+11)
C.
-(x^2+x+1)-(-x^2+x-1)

SoeCru

-(-x-y-2)-(4y+5x-9)=x+y+2-4y-5x+9=x-5x+y-4y+2+9=-4x-3y+11

-(-3a-2c-1)+(6a-11c+11)=3a+2c+1+6a-11c+11=3a+6a+2c-11c+1+11=9a-9c+12

-(x²+x+1)-(-x²+x-1)=-x²-x-1+x²-x+1=-x²+x²-x-x-1+1=-2x

6 votes Thanks 4

Magda

Odpowiedź:

$a)\ \ -(-x-y-2)-(4y+5x-9)=x+y+2-4y-5x+9=-4x-3y+11\\\\b)\ \ -(-3a-2c-1)+(6a-11c+11)=3a+2c+1+6a-11c+11=9a-9c+12\\\\c)\ \ -(x^2+x+1)-(-x^2+x-1)=-x^2-x-1+x^2-x+1=-2x$

1 votes Thanks 0

About Us

Life Enjoy

" Life is not a problem to be solved but a reality to be experienced! "

Recommend Questions

Life Enjoy

Get in touch

Social