To solve $x^2-4\ge 0$, a student answered $-2\le x\le 2$. What is the correct solution in interval notation?

Write (7 - 4i)/(3 + 4i) in a + bi form.

The discriminant of $3x^2+5x-7=0$ is 109. What does that tell you about the solutions?

Rewrite $y=4x^2+24x+43$ in vertex form.

Solve $4x^2-3=4x$ by factoring.

To solve $x^2-9\ge 0$, a student answered $-3\le x\le 3$. What is the correct solution in interval notation?

Simplify $i^{48}+i^{35}$. Write the answer in a + bi form.

To rewrite $y=4x^2-8x+7$, a student wrote $y=4(x^2-2x+1)+7-1$, then $y=4(x-1{)}^2+6$. What is the correct vertex form?

The graph of a quadratic function with real coefficients never meets the x-axis. What must be true of its discriminant?

Solve $x^2+6x+6=0$. What is the greater solution, rounded to the nearest hundredth?

Write (5 + 2i) + (7 + 7i) in a + bi form.

Simplify $i^{48}$.

Write (5 + 2i)(6 - 3i) in a + bi form.

A ball thrown from a roof has height $h(t)=-16t^2+16t+192$, where h is in feet and t is in seconds. After how many seconds does the ball reach the ground?

A quadratic function with real coefficients has exactly one repeated real solution. What must be true of its graph?

Rewrite $y=3x^2-12x+10$ in vertex form.

For what value of c does $x^2-10x+c=0$ have exactly one real solution?

Solve $x^2+3x+2\le 0$. Write the solution in interval notation.

Write 9/(2 - 4i) in a + bi form.

A parabola opens upward and crosses the x-axis at -5 and -3. For which x-values is y > 0? Write the answer in interval notation.

Solve $4x^2+13x-12=0$ by factoring.

A quadratic function passes through (0, -3), (1, -6) and (2, -11). Write it in standard form.

Complete the square to find the greatest output value of $y=-2x^2-20x-41$.

Write (-4 - 7i) - (6 - 2i) in a + bi form.

Write $(-5-5i{)}^2$ in a + bi form.

Solve $x^2-2x+65=0$. Give the answer in a + bi form.

Write the quadratic function with zeros x = 2 and x = -5/3 and leading coefficient 3, in standard form.

Write the quadratic function with leading coefficient 1 whose zeros are $1+\sqrt{10}$ and $1-\sqrt{10}$, in standard form.

Solve $x^2-16x+145=0$. Give the answer in a + bi form.

Solve $x^2-10x+26=0$ with the quadratic formula. Give the answer in a + bi form.

Write (3 - 6i)/(4 + 2i) in a + bi form.

To rewrite $y=4x^2-16x+11$, a student wrote $y=4(x^2-4x+4)+11-4$, then $y=4(x-2{)}^2+7$. What is the correct vertex form?

For what value of c does $2x^2-8x+c=0$ have exactly one real solution?

Write (-4 + 7i)/(4 + 2i) in a + bi form.

The graph of a quadratic function with real coefficients passes through the x-axis at two separate points. What must be true of its discriminant?

Solve $10x^2+7x+1=0$ by factoring.

What value of c makes $x^2-12x+c$ a perfect square trinomial?

Rewrite $y=4x^2-40x+103$ in vertex form.

The discriminant of $3x^2-9x+4=0$ is 33. What does that tell you about the solutions?

Write (3 + 7i)/(2 + 3i) in a + bi form.