Question

pls solve the second one asap...dont reply if u dont know​

Answer 1

Answer:

See this.

Step-by-step explanation:

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Answer 2

Answer:

i) 4x²+12xy +9y²

we know that,

(a+b)² = a² + 2ab + b²

RHS = 4x² +12xy + 9y²

LHS = Here 4x² can be written as (2x)² , 9y ² as (3y)²...

        = (2x + 3y)²

ii)  2a^5- 54 a²

    =2 a²( a³- 27 )

   = 2 a² [ a³-3³ ]  

We know that,

a³ - b³= ( a - b ) ( a²+ ab + b² )    

= 2 a² ×( a - 3 ) ( a²+3a+3² )

=2a²(a-3)(a²+3a+9)

       

Hope it helps....

Thank you..