Question

va roggggg repedeeeeee ​

Answer 1

Răspuns:

a)2x-3y+5x-4y-7x+8y =-7x+7x+8y-7y=y

b)5x²+2xy-1/2xy+x²=6x²+1,5xy

c)4x²-3xy²-4x²y-3x²y²+3xy²+3x²y²=4x²-4x²y

d)1/2ab+1/3ab+1/6ab-ab=³)1/2ab+²)1/3ab+1/6ab-ab=3/6ab+2/6ab+1/6ab-ab=6/6ab -ab=1

e)2,5a-3,2b+0,5a-0,8b-3a=3a-3a-4,5b=-4,5b

f)3x³-5x+9b²-4a²+6a²-3b²=3x³-5x+5a²-3b²

g)12a²-5a²+9b²-4a²+6a²-3b²=9a²+6b²

h)c³-0,5c³-1/3c³-2,5c³+1,5c³=0,5c³-1/3c³-1c³=1/2c³-1/3c³-1c³=-5/6c³

i)6x+7x²-9x-5x²+13x=10x+2x²

Answer 2

Răspuns:

vezi rezolvarea în poză