Math, asked by angeljain2332, 7 months ago

Simplify (3x+5)^2-(3x-5)^2​

Answers

Answered by sanu21gavit
2

=(3x+ 5)^2 - (3x -5)^2

(a+b)^2 = a^2+2ab +b^2

(a- b)^2 = a^2-2ab+b^2

=[ (3x)^2 + 2*3x * 5 + (5)^2 ] - [ ( 3x)^2 - 2* 3x * -5 + (5)^2]

= [ (9)x^2 + 30x + 25] - [ (9)x^2 - 30x +25]

= (9)^2 + 30x +25 - (9)x^2 +30x -25

= 30x + 30x

= 60x

Similar questions