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(a-b)^2 Expansion and Visualisation

Question 3 vi...

Question

Question 3 (viii)

Subtract:

$4 p q - 5 q^{2} - 3 p^{2} f r o m 5 p^{2} + 3 q^{2} - p q$

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Solution

$5 p^{2} + 3 q^{2} - p q - (4 p q - 5 q^{2} - 3 p^{2}) = 5 p^{2} + 3 q^{2} - p q - 4 p q + 5 q^{2} + 3 p^{2}$
$= 5 p^{2} + 3 p^{2} + 3 q^{2} + 5 q^{2} - p q - 4 p q$
$= 8 p^{2} + 8 q^{2} - 5 p q$

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(a-b)^2 Expansion and Visualisation

Standard VII Mathematics

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