Question

simplify (2.5p - 1.5q) - (1.5p - 2.5q) using suitable identity​

Answer 1

Step-by-step explanation:

it would be solved using second identity

a²-2ab+ b²

let's take 2.5p as a² and 1.5q as b²

2.5p²-2×2.5p × 1.5q + 1.5p²

6.25p-7.5pq+2.25p

Answer 2

Answer:

(2.5p−1.5q)  

2

−(1.5p−2.5q)  

2

 

=6.25p  

2

−7.5pq+2.25q  

2

−(2.25p  

2

−7.5pr+6.25q  

2

)

=6.25p  

2

−7.5pq+2.25q  

2

−2.25p  

2

+7.5pq−6.25q  

2

)

=4p  

2

−4q  

2(2.5p−1.5q)  

2

−(1.5p−2.5q)  

2

 

=6.25p  

2

−7.5pq+2.25q  

2

−(2.25p  

2

−7.5pr+6.25q  

2

)

=6.25p  

2

−7.5pq+2.25q  

2

−2.25p  

2

+7.5pq−6.25q  

2

)

=4p  

2

−4q  

2