For x = 9 and y = 4, the value of x2 + 2xy + y2 - 3 is :
172
100
166
169
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Given,
⇒ x2 + 2xy + y2 - 3
⇒ (x + y)2 - 3
Substituting values we get :
⇒ (9 + 4)2 - 3
⇒ 132 - 3
⇒ 169 - 3
⇒ 166.
Hence, Option 3 is the correct option.
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For x = 5 and y = 3, the value of x2 + y2 - 2xy + 7 is :
11
71
1