Question

2. The table below is intended to give certain differences between photosynthesis and respiration, but a few points are given wrongly. Strike out the wrong ones and write the correct words instead. PHOTOSYNTHESIS (i) Results in loss in weight (ii) Sucrose is the product (iii) Occurs in green cells only (iv) Uses water and oxygen 1 1 1 1 RESPIRATION Results in gain in weight Sucrose is broken down Occurs in all cells Uses glucose and oxygen​

Answer 1

Answer:

the first one for photosynthesis is wrong...

in respiration also the 1st one is wrong...

Explanation:

Answer 2

Answer:

2y^3+y^2-2y-1

let p(y) = 2y^3+y^22y^3+y^2-2y-1

By trial,we find that

p(1)=2(1)^3+(1)^2-2(1)-1

= 2 + 1 - 2 -1=0

By factor theorem,(y -1)is a factor of p(y)

Now

2y^3+y^22y^3+y^2-2y-1

= 2x^2(y-1) +3y(y-1)+1(y-1)

= (y-1) (2y^2+3y+1)

= (y-1) (2y^2+2y+1)

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

= (y-1) (y+1) (2y+1).