Question

from the sum of (2y square +3yz),(_y square Yz _square) and yz +2z square. subtract the sum of 3y square _z square and _y square +yz +z square.​

Answer 1

first question

2y²+3yz

-y² -yz

yz+2z

=y²+(3y+2)z=y²+3yz+2z

3y²-z²

-y² +z²+yz

=2y²+yz

now subtract

y²+3yz+2z-2y²-yz

-y²-2yz+2z

finally answer is y²+2yz-2z