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(a+b)(a-b) Expansion and Visualisation

Question 8 ii...

Question

Question 8 (ii)

If p = - 10, find the value of $p^{2} - 2 p - 100$

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Solution

$p^{2} - 2 p - 100 = (- 10)^{2} - 2 (- 10) - 100$ [Putting p = - 10]
= 100 + 20 -100 = 20

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(a+b)(a-b) Expansion and Visualisation

Standard VII Mathematics

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