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3 years ago

Solve the equation for x by graphing. 2^x - 4 = -4^x + 4

Mathematics

2 answers:

lapo4ka [179]3 years ago

8 0

X~1.25. All you have to do is graph the function and see where the graph crosses the x-axis.

Katena32 [7]3 years ago

5 0

Draw 2 graphs on same grid. Where they intersect is the solution

y = 2^x + 4
y = -4^x - 4

Approximate answer is x = 1.25

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The quadratic equation is $x^{2}=-5 x-3$

We need to determine the solutions of the quadratic equation.

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Let us solve the equation to determine the value of x.

Adding both sides of the equation by 5x and 3, we get;

$x^{2}+5 x+3=0$

The solution of the equation can be determined using quadratic formula.

Thus, we get;

$x=\frac{-5 \pm \sqrt{5^{2}-4 \cdot 1 \cdot 3}}{2 \cdot 1}$

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