How do you simplify $(2x+1)(x-7)$ ?

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Answer 1 · 2015-09-18T17:34:30

$=color(blue)(2x^2−13x -7$

$color(blue)((2x+1))(x−7)$

$=color(blue)((2x)) * (x−7) +color(blue)((1)) * (x-7)$

$=2x^2−14x + x-7$

$=color(blue)(2x^2−13x -7$

How do you simplify (2x+1)(x-7)(2x+1)(x-7)?