use the distributive property
(2x + 1)(x²- x - 6)
=> 2x(x²- x - 6) + 1(x²- x - 6)
=> 2x³ -2x² - 12x + x²- x - 6
=> 2x³ - x² - 13x - 6
= 2x^3 -2x^2 -12x +x^2 -x -6
= 2x^3 -x^2 -13x -6
2x^3-2x^2-12x+x^2-x-6
2x^3-x^2-13x-6
3x^2-13-6 :)
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Verified answer
use the distributive property
(2x + 1)(x²- x - 6)
=> 2x(x²- x - 6) + 1(x²- x - 6)
=> 2x³ -2x² - 12x + x²- x - 6
=> 2x³ - x² - 13x - 6
= 2x^3 -2x^2 -12x +x^2 -x -6
= 2x^3 -x^2 -13x -6
2x^3-2x^2-12x+x^2-x-6
2x^3-x^2-13x-6
3x^2-13-6 :)