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கணிதம்
Class 8
இயற்கணிதம்
இயற்கணிதக் கோவைகளின் பெருக்கல்
16.
பெருக்கற் பலனைக் காண்க
Exercise condition:
4
m.
(i)
\((2x + 3)(2x – 4)\) (=\)
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−
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−
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(ii)
\((y2 – 4)(2y2 + 3y)\) =
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+
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−
i
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−
i
i
(iii)
\((m^2 – n)(5m^2n^2 – n^2)\) \(=\)
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i
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−
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+
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i
(iv)
\(3(x – 5) × 2(x – 1)\) \(=\)
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−
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+
i
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