What is the standard form of $y= (5x - 1) (x+1)$ ?

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Answer 1 · 2017-04-18T12:33:57

$y=5x^2+4x-1$

Multiply the terms in the original equation:

$(5x^2)+(5x)-(1x)-(1)$

Now combine terms including x:
$(5x^2)+(4x)-(1)$
This is the standard form of your original equation:
$y=5x^2+4x-1$

What is the standard form of y= (5x - 1) (x+1) y= (5x - 1) (x+1) ?