sum of 11xy-x²-4 and -14xy+5x²

11xy-x²-4+(-14xy+5x²)

11xy-x²-4-14xy+5x²

-3xy+4x-4

Now,

15xy+x²+2+(-3xy+4x-4)

15xy+x²+2-3xy+4x-4

12xy+5xy-2 - ANS

Mark me as brainliest

Answer:

18xy + 5x² -2

Step-by-step explanation:

11xy - 1x² - 4 - 14xy + 5x²

(11-14) xy + (-1+5) x² (4)

= -3xy + 4x² - 4

Now (-3xy + 4x² -4 ) + ( 15xy + 1x² + 2)

= 15xy +1x² + 2 - 3xy + 4x² - 4

(15-3) xy + (1+4) x² + (2-4)

=12xy + 5x² - 2

Hope it will help you.