Mathematics
Grand-Tests
Easy
Question
Which expression is equivalent to 6x 4 + 7 x2 + 2 ?
The correct answer is:
Let x2 by
6y2 + 7y + 2
6y2 + 4y + 3y + 2
3y (2y + 1) + 2 (2y + 1)
(3x2 + 2) (2 x2 + 1) (D) option.
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