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The value of (x – 1/x)(x + 1/x)(x² + 1/x²) is
Evaluate 105 × 106 without multiplying directly.
Factorise:
Write (3a + 4b + 5c)² in expanded form.
Factorise 4x² + y² + z² – 4xy – 2yz + 4xz.
Use suitable identities to find the following products:
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