Question

Find using identity. (0.4p-0.5q)​

Answer 1

Above is the answer of your question.

Answer 2

Question:

(0.4p-0.5q)

Answer:

0.16p²-0.25q²+0.04.

Identity: (a-b)²= a²- b²+2ab

=> 16x²+ 0.25+2(0.4×0.5)

= 0.04pq

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Hope it helps you