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Expression Formation

Question 4 ii...

Question

Question 4 (iii)

If a = 2, b = -2, find the value of:
$a^{2} - b^{2}$

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Solution

$a^{2} - b^{2} = (2)^{2} - (- 2)^{2}$ [Putting a = 2, b = -2]
= 4 – 4 =0

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Question 4 (i)

If a = 2, b = -2, find the value of:
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Expression Formation

Standard VII Mathematics

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