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Komok [63]
3 years ago
15

Solve for the value of x

Mathematics
1 answer:
german3 years ago
8 0
<h3>-7x=14</h3><h3>-x=14/7</h3><h3>-x=2( -1)</h3><h3>x=-2</h3><h3>espero ter ajudado.....</h3><h3>(bons estudos).....</h3>
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29.4

Step-by-step explanation:

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A quadratic equation is shown below:
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Answer:

Part A:

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Part B:

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Step-by-step explanation:

The quadratic equation

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Part A:

We are required to determine the vertex. The vertex is simply the turning point of the quadratic function. We shall differentiate the given quadratic function and set the result to 0 in order to obtain the co-ordinates of its vertex.

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Setting the derivative to 0;

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The vertex is thus located at the point;

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Find the attached

Part B:

We can use the quadratic formula to solve for x as follows;

The quadratic formula is given as,

x=\frac{-b+/-\sqrt{b^{2}-4ac } }{2a}

From the quadratic equation given;

a = 3, b = -11, c = 10

We substitute these values into the above formula and simplify to determine the value of x;

x=\frac{11+/-\sqrt{11^{2}-4(3)(10) } }{2(3)}=\frac{11+/-\sqrt{1} }{6}\\\\x=\frac{11+/-1}{6}\\\\x=\frac{11+1}{6}=2\\\\x=\frac{11-1}{6}=\frac{5}{3}

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3 years ago
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