How do you solve $x^{2} = 8 x$ $x^2=8x$ ?

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How do you solve $x^{2} = 8 x$ $x^2=8x$ ?

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Answer 1 · 2015-12-02T11:09:53

$x_{1} = 0 and x_{2} = 8$ $x_1=0 and x_2=8$

Explanation:

$x^{2} = 8 x$ $x^2=8x$
Add $8 x$ $8x$ to both sides:
$\Rightarrow x^{2} - 8 x = 8 x - 8 x$ $=>x^2-8x=8x-8x$
$\Rightarrow x (x - 8) = 0$ $=>x(x-8)=0$ (factrorization)
$\Rightarrow x_{1} = 0 and x_{2} = 8$ $=>x_1=0 and x_2=8$
graph{x^2-8x [-40, 40, -20, 20]}

Answer 2 · 2015-12-02T11:11:06

$x^{2}$ $x^2$ simply means the value x mulitplies itself twice.

Explanation:

Therefore, $x^{2}$ $x^2$ is $x \cdot x$ $x * x$

$\frac{x \cdot x}{x}$ $(x * x)/x$ = $\frac{8 x}{x}$ $(8x)/x$

Hence, the value of x is 8.

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How do you solve $x^{2} = 8 x$ $x^2=8x$ ?

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