Factorise : (P-q)^2 - 1
Answers
Answered by
0
Explanation:
[( p-q) +1] [( p-q) -1]
because this formula used in the equation
a² -b² = ( a+b) ( a-b)
hopefully helping you.........
Answered by
0
Answer:
p²-2pq+q²-1
Explanation:
expansion formula: (a+b)²=a²+2ab+b²
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