Question

Multiply.

5x2 - 8xy + 6y2 - 3 by - 3xy​

Answer 1

Multiply : 5x2 – 8xy + 6y2 – 3by – 3x

asked May 16, 2019 in Class VIII Maths by aditya23 (-2,145 points)

Multiply :

(i) 5x2 – 8xy + 6y2 – 3 by – 3xy

(ii) 3 – (2/3)xy + (5/7)xy2 – (16/21)x2 y by – 21x2y2

(iii) 6x3 – 5x + 10 by 4 – 3x2

(iv) 2y – 4y3 + 6y5 by y2 + y – 3

(v) 5p2 + 25pq + 4q2 by 2p2 – 2pq + 3q2

algebraic expressions (including operations on algebraic expressions)

1 Answer

answered May 16, 2019 by muskan15 (-3,443 points)

(i) 5x2 – 8xy + 6y2 – 3 × (-3xy)

= 15x3y3 + 24x2y2 – 18xy3 + 9xy

(ii) 3 – (2/3) xy + (5/7)xy2 – (16/21)x2y