Question

please solve:(a-b)(b-a)​

Answer 1

Answer:

Step by Step Solution

Step 1:

1.1    Rewrite   (b-a)    as  (-1) •  (a-b)  

Multiplying Exponential Expressions:

1.2    Multiply  (a-b)  by  (a-b)  

The rule says : To multiply exponential expressions which have the same base, add up their exponents.

In our case, the common base is  (a-b)  and the exponents are :

         1 , as  (a-b)  is the same number as  (a-b)1  

and   1 , as  (a-b)  is the same number as  (a-b)1  

The product is therefore,  (a-b)(1+1) = (a-b)2  

Final result :

 (a - b)2 • -1

Step-by-step explanation:

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Answer 2

Answer:

$\huge\mathfrak\purple{Solution }$

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

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

$= ab - {a}^{2} + {b}^{2} + ab$

$= {a}^{2} - 2ab + {b}^{2}$

You also solve this by applying this rule:-

$(a - b)(b - a) = (a - b)^{2}$

${(a - b)}^{2} = {a}^{2} - 2ab + {b}^{2}$

Step-by-step explanation:

Hope this helps you.

# By Sparkly Princess