Question

Pls help me out. no spam answers please​

Answer 1

Answer:

Correct option is

A

2

8y

2

+12y+21

16y

2

−20y+9

=

2y+3

4y−5

=>

4y(2y+3)+21

4y(4y−5)+9

=

2y+3

4y−5

Let 4y−5=a and 2y+3=b

=>

4y(b)+21

4y(a)+9

=

b

a

=>4yab+9b=4yab+21a

=>9(2y+3)=21(4y−5)

=>18y+27=84y−105

=>18y−84y=−27−105

=>−66y=−132

=>y=2