What is the standard form of $y = (- 2 x - 9) (x + 5) (- x + 12)$ $y= (-2x-9)(x+5)(-x+12)$ ?

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Answer 1 · 2018-05-31T05:44:53

$y = 2 x^{3} - 5 x^{2} - 63 x - 540$ $color(blue)(y = 2x^3 -5x^2 - 63x - 540$

$y = - (2 x + 9) (x + 5) (- x + 12)$ $y = -(2x +9) (x+5) (-x+12)$

$y = - (2 x^{2} + 9 x + 10 x + 45) (- x + 12)$ $y = -(2x^2 + 9x + 10x + 45) (-x+12)$

$y = - (- 2 x^{3} - 19 x^{2} - 45 x + 24 x^{2} + 108 x + 540)$ $y = -(-2x^3 - 19x^2 -45x + 24x^2 + 108x + 540)$

$y = 2 x^{3} - 5 x^{2} - 63 x - 540$ $color(blue)(y = 2x^3 -5x^2 - 63x - 540$

What is the standard form of y= (-2x-9)(x+5)(-x+12)y=(−2x−9)(x+5)(−x+12) y= (-2x-9)(x+5)(-x+12)?