Math, asked by bhagavan8254, 1 year ago

Factorise with suitable identity 8a^3+b^3+12a^2b+6ab^2

Answers

Answered by rohitkumargupta
15
HELLO DEAR,


8a³ + b³ + 12a²b + 6ab²

(2a)³ + b³ + 3(2a)b(2a + b)

(2a + b)³
∴ [ (a + b)³ = a³ + b³ + 3ab(a + b)



I HOPE ITS HELP YOU DEAR,
THANKS
Answered by Anonymous
9
Heya ✋

Let see your answer !!!!!

8a ^{3}  + b ^{3}  + 12a ^{2}b + 6ab ^{2}   \\ we \: apply \: this \: identity \: here \\
(a + b) ^{3}  = a ^{3}  + b ^{3}  + 3a ^{2}b + 3ab ^{2}  \\


 = (2a) ^{3}  + (b) ^{3}  + 3 \times (2a) ^{2}  \times b + 3 \times 2a \times b ^{2}  \\   \\ = (2a + b) ^{3}   \\  \\  = (2a + b)(2a + b)(2a + b)








Thanks :)))))
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