Question

Multiply : ( 2x - 4y) ( 9x + 3x2 - 7y )

Answer 1

Answer:

Step-by-step explanation:

= (2x-4y) (9x+3 x 2-7y)

= 2x - 4y + 9x + 3 x 2 -7y

= 2x + 9x -4y -7y + 6

= 11x - 11y + 6

Answer 2

= 2x (9x + 3x^2 - 7y) - 4y (9x + 3x^2 - 7y)
= 18x^2 + 6x^3 - 14xy - 36xy - 12 x^2 y - 28 y^2

= 6x^3 + 18x^2 - 50xy - 12yx^2 - 28y^2