2017
Mathematics
JAMB
What is the product of 2x2x
A.
4x3 − 8x2 + 5x + 3
B.
−4x3 + 8x2 − 5x + 3
C.
−4x3 − 8x2 + 5x + 3
D.
4x3 + 8x2 − 5x + 3
Correct Answer: −4x3 + 8x2 − 5x + 3
Explanation
(2x2 - x + 1) × (3 - 2x); 3(2x2 - x + 1) - 2x (2x2 - x + 1) 6x2 - 3x + 3 - 4x3 + 2x2 - 2x -4x3 + 8x2 -5x + 3
(2x2 - x + 1) × (3 - 2x); 3(2x2 - x + 1) - 2x (2x2 - x + 1) 6x2 - 3x + 3 - 4x3 + 2x2 - 2x -4x3 + 8x2 -5x + 3THIS WEEK's
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