Question

add with column method,
please answer fast , because in lockdown also my exams are going on ( online ) , so please send fast with correct solution​

Answer 1

Answer:

see the attachment

Step-by-step explanation:

hope it's helpful :)

Answer 2

a ) 4x^2 - 3 x^2 +2 xy + 7 xy - 2 y ^2 - 6 y ^2

= x^2 + 9 xy - 8 y^2

b ) = -7 x - 4x +2 xy + xy - 4y ^2 + 2 y ^2

= - 11 x + 3 xy - 2 y ^2