Question

Which one of the points not lie on the graph of the quadratic polynomial f(x)= x2 +5x +6

Answer 1

$</p><p>x2+5x+6>0$

$</p><p>x2+2⋅52x+(52)2−(52)2+6>0</p><p>$

$(x+52)2−254+6>0</p><p>$

$</p><p>(x+52)2−14>0∣+14</p><p>$

$</p><p>(x+52)2>14∣√</p><p>$

$x+52>±12∣−52</p><p>$

$x1>−2orx2<−3$

Answer 2

Step-by-step explanation:

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