4 years ago

Help! 4+?=-2 4+?=-1 4+?=-9

Mathematics

2 answers:

deff fn [24]4 years ago

5 0

Number 1.=6 Number 2.=5 Number 3.=13

aleksandr82 [10.1K]4 years ago

3 0

Number 1 is -6 Number 2 is -5 And 3 is -9

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Step-by-step explanation:

Hello!

We can solve the quadratic by using the Quadratic Formula.

Standard form of a Quadratic: $ax^2 + bx + c = 0$

Quadratic Equation: $x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}$

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a = 1
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Set the equation to 0 and solve using the formula.

<h3>Solve</h3>

$x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}$
$x = \frac{-4\pm\sqrt{4^2 - 4(1)(20)}}{2(1)}$
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