Write down the following products:
(x + 6)(x + 2)
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(i) Given,
⇒ (x + 6)(x + 2)
⇒ (x2 + 2x + 6x + 12)
⇒ (x2 + 8x + 12).
Hence, (x + 6)(x + 2) = (x2 + 8x + 12).
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Simplify using suitable identity:
(3x - 5y - 4)(9x2 + 25y2 + 16 + 15xy - 20y + 12x)
(x + 8)(x - 3)
(x - 5)(x - 7)