Question

Efetua as subtrações dos polinômiosa (7ab+2c-3a)-(5ab-4a+c)
(2x+2z-y)+(x-2y)-(y+x-3z)

Answer 1

7ab+2c -3a -5ab+4a -c=

7ab -5ab +2c-c -3a+4a=

2ab + 1c + 1a=

2ab+c+a




2x+2z-y+x-2y -y-x+3z=

2x+x-x +2z+3z -y-2y-y=

2x +5z -4y