Question

7xy(x^2-2xy+3y^2) - 8x(x^2y - 4xy+7xy^2) from 3y(4x^2y- 5xy+ 8xy^2) subtract this

Answer 1

Step-by-step explanation:

Adding the given terms, we have

(i) 7abc + (-5abc) + (9abc) + (-8abc)

= 7abc – 5abc + 9abc – 8abc

= (7 – 5 + 9 – 8)abc

= (16 – 13)abc

= 3abc

(ii) 2x2y +(-4x2y) + (6x2y) + (-5x2y)

= 2x2y - 4x2y + 6x2y - 5x2y

= (2- 4 + 6 - 5) x 2y

= (8 - 9) x 2y

= -x2y