3 years ago

Factor the expression. If the expression cannot be factored, say so.

1 answer:

8 0

Delta = 25 - 16 = 9 => $\sqrt{Delta} = 3;$
$x_{1} = (-5 + 3)/4 = -1/2 and x_{2} = (-5 -3)/4 = -2;$ ;
=> 2 $x^{2} + 5x + 2 = 2(x+1/2)(x+2).$ = (2x+1)(x+2).

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