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MATHEMATICS

JAMB 2017 - Question 15

Mathematics 2017 JAMB Past Questions - Question 15: what is the product of 2x² - x +1 and 3-2x.

what is the product of 2x² - x +1 and 3-2x.

A: 4x³ -8x²+5x +3

B: - 4x ³ + 8x² - 5x +3

C: -4x³ - 8x² +5x +3

D: 4x³ +8x² - 5x +3

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Correct Answer

Explanation

The product of 2x² - x + 1 and 3 - 2x can be found by multiplying each term in the first expression by each term in the second expression and then combining like terms.(2x² - x + 1)(3 - 2x)= 2x²(3) - 2x² - x(3) + 2x² - x + 1(3) - 2x= 6x² - 2x² - 3x + 2x² - x + 3 - 2x= 6x² - 3x + 3So, the product of 2x² - x + 1 and 3 - 2x is 6x² - 3x + 3.