1
Question
Use the formula to find the factors.
(3) 1 – p2
(3) 1 – p2
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Solution
1 – p2
= (1)2 – (p)2
= (1 + p) (1 – p) [a2 – b2 = (a + b) (a – b)]
∴ 1 – p2 = (1 + p) (1 – p)
= (1)2 – (p)2
= (1 + p) (1 – p) [a2 – b2 = (a + b) (a – b)]
∴ 1 – p2 = (1 + p) (1 – p)
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