Question

(iv) a + b -3, b - a +3, a – b +3​

Answer 1

Step-by-step explanation:

(a - b) ³ = a³ - b³ - 3ab (a - b)

LHS =

(a - b) ³

=)) (a - b) (a - b) (a - b)

=)) ( a² - ab -ab + b² ) (a - b)  

=)) a³ -a²b -a²b + ab² -a²b + ab² +ab² - b³  

=)) a³ - a²b -a²b - a²b + ab² + ab² + ab² - b³  

=)) a³ - 3a²b + 3ab² - b³

=)) a³ - b³ -3ab (a - b)

= RHS

hence proved

HOPE IT HELPS

PLS MARK ME AS BRAINLIEST!!

Answer 2

Answer:

Add:

a + b - 3; b - a + 3; a - b + 3

Answer is :

a+b-3+b-a+3+a-b+3

a + b + 3