expand each of the following,using suitable identities
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x^2 + 2y^2 +4z^2 + 2×x × 2y + 2 ×2y ×4z
+2× 4z ×x
x^2 + 4y^2 + 16z ^2 +4xy + 16yz + 8zx . identity is ( x + y + z ) ^2
x^2 +y ^2 + z^2 + 2xy +2yz + 2zx .
hope this helps you to solve this type of another question.
+2× 4z ×x
x^2 + 4y^2 + 16z ^2 +4xy + 16yz + 8zx . identity is ( x + y + z ) ^2
x^2 +y ^2 + z^2 + 2xy +2yz + 2zx .
hope this helps you to solve this type of another question.
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