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

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Answer 1 · 2018-03-08T10:06:04

$y = 2 x^{2} + 2 x$ $y=2x^2 + 2x$

Simply multiply it out
$y = 3 x^{2} + 6 x - x^{2} - 4 x$ $y= 3x^2+6x -x^2 -4x$
Then simplify it out to
$y = 2 x^{2} + 2 x$ $y=2x^2 + 2x$

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