Question

Multiply :
( a + b by ab
(ii) 3ab - 4b by 3ab
(iv) 4x + 2y by 3xy (v) x2 - x by 2x
(vi) 9xy2 + 3x2y by 5xy (viii) 6x - 5y by 3axy
Multiply :
(iii) 2xy - 5by by 4bx
(vi) 1 + 4x by X


please with explanation ​

Answer 1

Step-by-step explanation:

Multiply:

• (a+b)ab=a(ab) +b(ab) =a^2b+ab^2
• (3ab-4b)3ab=3ab(3ab)-3ab(4b) =9a^2b^2-12ab^2
• (2xy-5by)4bx=2xy(4bx)-5by(4bx)

=8x^2by-5b^2xy

• (4x+2y)3xy=4x(3xy)+2y(3xy)

=12x^2y+6xy^2