RocNation
RocNation
01-11-2014
Mathematics
contestada
Select the product of (7x - 2)(7x + 7).
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Аноним
Аноним
01-11-2014
(7x-2)(7x+7)
=(7x)²+49x-14x-14
=7²x²+35x-14
=49x²+35x-14
Answer Link
eah
eah
01-11-2014
(7x - 2)(7x + 7)
= 7x * 7x + 7x * 7 - 2 * 7x - 2 * 7
= 49x² + 49x - 14x - 14
= 49x² + 35x - 14
Answer Link
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