Question

12. (5 - xy) (3 + xy)
16. (2x + 3) (3x + 2)​

Answer 1

Answer:

(i) 7x3y + 9yx3 = (7 + 9)x3y = 16x3y (ii) 12a2b + 3ba2 = (12 + 3)a2b = 15a2b ... (i) x3- 2x2y + 3xy2- y3+ 2x3- 5xy2 + 3x2y- 4y3. Collecting ...

Step-by-step explanation:

please like my answer and follow me

Answer 2

Step-by-step explanation:

12. 3(5-xy)+xy(5-xy)

15-3xy+5xy-x²y²

-x²y²+2xy+15

x²y²-2xy-15

13. 3x(2x+3)+2(2x+3)

6x²+9x+4x+6

6x²13x+6