Math, asked by mssonu, 1 year ago

9x2_9(a+b)x+(2a2+5ab+2b2)=0

Answers

Answered by BrainlyPrincess
3
9x²-9(a+b)x+(2a²+5ab+2b²)
first we will take 
(2a²+5ab+2b²)and factorize it
⇒2a²+4ab+ab+2b²
⇒2a(a+2b)+b(a+2b)
⇒(2a+b)(a+2b)
now,9x²-9(a+b)x+(2a+b)(a+2b)=0
9x²-3(2a+b)x-3(a+2b)x+(2a+b)(a+2b)=0
3x(3x-(2a+b))-(a+2b)(x-(2a+b))=0
(3x-(a+2b))(3x-(a+2b))=0
∴x=(a+2b)/3  and x=(2a+b)/3

Hope it helps. Plz mark me as brainliest.

mssonu: thank u sister
BrainlyPrincess: u r girl or boy
mssonu: boy
mssonu: why asking
BrainlyPrincess: OK
BrainlyPrincess: u r 2nd boy who is saying sis to me
mssonu: oooo
BrainlyPrincess: yes
Mounikamoparthi: from last third line u have forget to write 3 in (a+2b)(x-(2a+b))
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