Question

b) x - 2y + y + 3x
e) a² + b2 - 2ab + 2b2 - 4ba
tal method:
) 2xy? – 7x?y2 + 9x?y? – 11x?y?
IX 2a + 2b + 2a - b + a - b
method:
2a + 2b2 + 2ab​

Answer 1

Answer:

b) x+3×, -2y-y

= 4x, +y

this is only answer