Question

Factorise the splliting middle term
(a) 2(x+y)^2-9(x+y)-5

Answer 1

Answer:

= 2 (x + y)² - (10 - 1) (x + y) - 5

= 2 (x + y)² - 10 (x + y) + (x + y) - 5

= 2 (x + y) (x + y - 5) + 1 (x + y - 5)

= (x + y - 5) {2 (x + y) + 1)

= (x + y - 5) (2x + 2y + 1),

Step-by-step explanation:

Answer 2

Answer:

5,-1/2

Step-by-step explanation:

2(x+y)²-10(x+y)+(x+y)-5. =2(x+y){(x+y)-5}+1{(x+y)-5}. ={2(x+y)+1}{(x+y)-5} (x+y)=5,-1/2