English, asked by shidharmalagave, 3 months ago

(2y+4) (2y+5) solve this​

Answers

Answered by amandeep3885
0

Answer:

4y +20

Explanation:

(2y +4)×(2y+5)

=(2y×2y) + (4×5)

= 4y + 20

Answered by bhoirtanmay17
0

Answer:

2y^2 + 10y +8y +20 =0

2y^2 + 18y + 20 =0

divide throughout by 2

y^2 + 9y + 10 =0

comparing with ax^2 + bx +c =0

a=1. b=9. c= 10

y = -b+√b^2 -4 a c

---------------------

2a

= -9 +√41

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2

is the solution.

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