Question

45 a cube + 5 a cube minus
$45a$
38 square b square

Answer 1

Hey Friend ☺

45a^3b + 5ab^3 - 30a^2b^2

= 5ab ( 9a^2 + b^2 - 6ab )

= 5ab ( 9a^2 - 6ab + b^2 )

= 5ab ( 9a^2 - 3ab - 3ab + b^2 )

= 5ab [ 3a ( 3a - b ) - b ( 3a - b ) ]

= 5ab( 3a - b )( 3a - b )

Hope it helps you ..!!

✌

Answer 2

Heya ✋

Let see your answer !!!

$45a ^{3}b + 5ab ^{3} - 30a ^{2}b \\ = 5ab(9a ^{2} + b ^{2} - 6ab) \\ = 5a((3a) ^{2} + b ^{2} - 6 \times 3a \times b) \\ = 5a(3a - b) ^{2} \\ = 5a(3a - b)(3a - b)$


Thanks :)))