3 years ago

Please help! Simplify the rational expression. State any restrictions on the variable.

Mathematics

1 answer:

alukav5142 [94]3 years ago

6 0

Step-by-step explanation:

t^2-4xt-12/t-8

= -(t^2-4-6)/4

= -t^2+4+6/4

= -t^2+6

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Step-by-step explanation:

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What are the exact solutions of x^2 − 3x − 7 = 0?

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Given:

The given equation is $x^{2} -3x-7=0$

We need to determine the exact solutions of the equation.

Exact solution:

The exact solution of the equation can be determined by solving the equation using quadratic formula,

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

From the equation the values are a = 1, b = -3 and c = -7

Thus, substituting these values in the equation, we get;

$x=\frac{-(-3) \pm \sqrt{3^2-4(1)(-7)}}{2(1)}$

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