Question

Q.5. Simplify: (px + qy) (ax - by)​

Answer 1

Answer:

ap$x^{2}$ - abxy + aqxy - bq$y^{2}$

Step-by-step explanation:

( px + qy ) ( ax - by )

= px ( ax - by ) + qy ( ax - by )

= ap$x^{2}$ - abxy + aqxy - bq$y^{2}$

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