Question

10.Simplify : (2.5p − 1.5q) ²− (1.5p − 2.5q)²

Answer 1

Step-by-step explanation:

(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