3 years ago

What is the answer

Mathematics

1 answer:

Mariana [72]3 years ago

8 0

Answer:

3x² + 6

Step-by-step explanation:

i think?

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3 years ago

Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth.

Phoenix [80]

Answer:

Option B. 1.93, -11.93 is the right answer.

Step-by-step explanation:

Here the given equation is x²-23 = 10x and we have to solve the equation for the value of x.

First we simplify the equation to bring in the shape of ax²+bx+c=0

x²-23 = 10x

(x²-23)-10x = 10x-10x

x²-10x -23 = 0

Now we the formula for the value of $x= \frac{-b\pm \sqrt{b^{2}-4ac}}{2a}$

$x=\frac{10\pm \sqrt{(-10)^{2}-4(1)(-23)}}{2(1)}$

$x=\frac{-10\pm \sqrt{100+92}}{2}$

$x= \frac{-10\pm \sqrt{192}}{2}$

$x=\frac{-10\pm 4\sqrt{12}}{2}$

$x=-5\pm 2\sqrt{12}$ $= -5\pm (2\times 3.464)$ $= -5\pm 6.93$

Now x = (-5+6.93) = 1.93

and x = (-5-6.93) = -11.93

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3 years ago

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