What is the standard form of $y = (x - 12) (3 x + 2) (7 x - 4)$ $y= (x-12)(3x+2)(7x-4)$ ?

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Answer 1 · 2018-04-15T09:23:05

See a solution process below..

Recall the standard form formula is;

$A x + B y = c$ $Ax + By = c$

Where;

$A, B and C$ $A, B and C$ are respective coefficients..

$y = (x - 12) (3 x + 2) (7 x - 4)$ $y = (x - 12)(3x + 2)(7x - 4)$

Firstly, removing the brackets..

$y = 21x³ - 283x - 168 - 12x² + 136x + 96$

$y = 21x³ - 12x² - 283x + 136x - 168 + 96$

$y = 21x³ - 12x² - 147x - 72$

Rearranging the equation..

$21x³ - 12x² - 147x - y = 72$

What is the standard form of y= (x-12)(3x+2)(7x-4)y=(x−12)(3x+2)(7x−4) y= (x-12)(3x+2)(7x-4)?