Question

plz bta do very important ​

Answer 1

Step-by-step explanation:

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

Answer 2

Answer:

(2.5p-1.5q)²-(1.5p-2.5q)²

using formula

a²-b² = (a+b) (a-b)

here

a=(2.5p-1.5q)

b=(1.5p-2.5q)

(2.5p-1.5q)²-(1.5p-2.5q)²

=(2.5p-1.5q+1.5p-2.5q)×(2.5p-1.5q-1.5p-2.5q)