from the sum of 4x sq. - 3xy + 5 and 9+2xy + x sq. subtract 3xy +. x sq. -2
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Step-by-step explanation:
add 4x sq. - 3xy + 5 and 9+2xy + x sq.
(4x sq. - 3xy + 5 )+(9+2xy + x sq)
combine like terms
= 4x sq+X sq -3xy+2xy+5+9
=5x sq-xy+14
subtract :-
5x sq-xy+14-(3xy +. x sq. -2)
5x sq -3xy+14-3xy-x sq+2
After - sign,sign will change.
combine like terms
= 5x sq -3xy+14-3xy-x sq+2
=5x sq-x sq-3xy-3xy +14+2
=4x sq-6xy+16
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