Question

Q. 7.. please Answer​

Answer 1

Answer:

use a²-b²=(a+b)(a-b)

(0.3p)²-(0.2q)²

Answer 2

Answer:

0.9p²-0.4q²

Step-by-step explanation:

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Using Identity (a+b) (a-b) = a²-b²

=> (0.3p+0.2q) (0.3p-0.2q)

=> (0.3p)²-(0.2q)²

=> 0.9p²-0.4q²

hope it helps:)