$\frac{{x}^{3}-1}{{x}^{2}+1}\xf7\frac{9{x}^{2}+9}{{x}^{2}-x}=$

Karsyn Beltran
2022-07-27
Answered

$\frac{{x}^{3}-1}{{x}^{2}+1}\xf7\frac{9{x}^{2}+9}{{x}^{2}-x}=$

You can still ask an expert for help

asked 2022-03-21

Solve the equation ${z}^{3}-2{z}^{2}+3z-2=0.$

If a is a complex solution of this equation, what does A equal?

$A=\frac{{\left|a\right|}^{2}}{1-{i}^{43}}$

If a is a complex solution of this equation, what does A equal?

asked 2022-03-13

What method is required to find out "for what values of k is $4{x}^{2}+kx+\frac{1}{4}$ a perfect square?"

asked 2021-11-07

Use the quadratic formula to solve for x.

$2{x}^{2}-6x-1=0$

(If there is more than one solution, separate them with commas.)

(If there is more than one solution, separate them with commas.)

asked 2021-10-24

Use the vertex and intercepts to sketch the graph of the quadratic function. Give the equation for the parabolas

asked 2021-08-18

Find x, if

$9(-0.84x+\sqrt{17})=\sqrt{6}x-4$

asked 2022-02-01

How do we know that the quadratic $3{y}^{2}-y-12$ has real root?

(a) Notice the quadratic cannot be factored into the product of two binomials with integer cofficients. Does this mean that the quadratic does not have any real roots?

(b) If the answer to part (a) is "no", then explain how we know that the quadratic does have real roots.

(c) Suppose the quadratic has roots$y=r\text{}\text{and}\text{}y=s$ . Find a quadratic with roots $r+2\text{and}\text{}s+2$ .

(a) Notice the quadratic cannot be factored into the product of two binomials with integer cofficients. Does this mean that the quadratic does not have any real roots?

(b) If the answer to part (a) is "no", then explain how we know that the quadratic does have real roots.

(c) Suppose the quadratic has roots

asked 2022-03-15

Where does the plus-minus come from in the quadratic formula?

$x}_{1,2}=\frac{-b\pm \sqrt{{b}^{2}-4ac}}{2a$