Question

4xy(x cubed +5xy- 7y squared)

Answer 1

Explanation:

4xy( x^3+5xy-7y)

=4xy(x^3)+4xy(5xy)-4xy(7y)

=4x^4 y + 20x^2 y^2- 28xy^2

Answer 2

4x^4y + 20x^2y^2 - 28x^3y

Explanation:

4xy(x^3 + 5xy - 7x^2)

= 4xyx^3 + 4xy * 5xy - 4xy * 7x^2

= 4x^2y + 4xy * 5xy - 4xy * 7x^2

= 4x^4y + 20x^2y^2 - 4xy * 7x^2

= 4x^4y + 20x^2y^2 - 28x^3y