Question

Plzz solve this.........factorise 9(x+a)^2-4x^2

Answer 1

Hey friend, here is your answer --

9 ( x + a ) ² - 4x²
{ 3 ( x + a ) }² - ( 2x )²
( 3x + 3a )² - ( 2x )²
By using following formula we have solved furthur
${a \:}^{2} \: - \: {b \:}^{2} \: = \:( a \: + \: b \: ) \: ( \: a \: - \: b \: )$
( 3x + 3a + 2x ) ( 3x + 3a - 2x )
( 5x + 3a ) ( x + 3a )