Quiz about February 24 - G8 Math Drills

Question 1

Solve the following Quadratic Equation using factoring.

y = $$x^2+14x-72$$

Accepted Answer

x = 4 and x = -18

Answer

x = 4 and x = 18

Answer

x = -4 and x = 18

Answer

x = -4 and x = -18

Question 2

Solve the following Quadratic Equation using factoring.

y = $$-x^{2\ }+\ 13x\ -12$$

Accepted Answer

x = 1 and x = 12

Answer

x = 1 and x = -12

Answer

x = -1 and x = 12

Answer

x = -1 and x = -12

Question 3

Solve the following Quadratic Equation using factoring.

y = $$25x^{2\ }-49$$

Accepted Answer

x = 7/5 and x = -7/5

Answer

x = 3/5 and x = -7/5

Answer

x = 1/5 and x = -6/5

Answer

x = 3/5 and x = -4/5

Question 4

Solve the following Quadratic Equation using factoring.

y = $$4x^{2\ }-4x\ -3$$

Accepted Answer

x = 3/2 and x = -1/2

Answer

x = -3/2 and x = -1/2

Answer

x = -3/2 and x = 1/2

Answer

x = 3/2 and x = 1/2

Question 5

Solve the following Quadratic Equation using factoring.

y = $$6x^{2\ }+13x\ +6=0$$

Accepted Answer

x = -3/2 and x = -2/3

Answer

x = 3/2 and x = -2/3

Answer

x = 3/2 and x = 2/3

Answer

x = -3/2 and x = 2/3

Question 6

Solve the following Quadratic Equation using factoring.

y = $$2x^2+8x\ =\ 5x\ +20$$

Accepted Answer

x = 5/2 and x = -4

Answer

x = -5/2 and x = 4

Answer

x = 5/2 and x = 4

Answer

x = -5/2 and x = -4

Question 7

Solve the following Quadratic Equation using factoring.

y = $$5x^2-\frac{17}{2}x\ +\frac{3}{2}=0$$

Accepted Answer

x = 3/2 and x = 1/5

Answer

x = 3/2 and x = -1/5

Answer

x = -3/2 and x = -1/5

Answer

x = -3/2 and x = 1/5

Question 8

Solve the following Quadratic Equations using Completing the Square:

$$3x^2-12x+6\ =\ 0$$

Accepted Answer

$$x=2+\sqrt[2]{2}$$

Accepted Answer

$$x=2-\sqrt[2]{2}$$

Answer

$$x=-2+\sqrt[2]{2}$$

Answer

$$x=-2+\sqrt[2]{2}$$

Question 9

Solve the following Quadratic Equations using Completing the Square:

$$x^2-3x=x-1$$

Accepted Answer

$$x=2+\sqrt[2]{3}$$

Accepted Answer

$$x=2-\sqrt[2]{3}$$

Answer

$$x=-2+\sqrt[2]{3}$$

Answer

$$x=-2+\sqrt[2]{3}$$

Question 10

Solve the following Quadratic Equations using the Quadratic Equation:

$$2x^2-x=4$$

Accepted Answer

$$x=\frac{1+\sqrt[2]{33}}{4}$$

Accepted Answer

$$x=\frac{1-\sqrt[2]{33}}{4}$$

Answer

$$x=\frac{-1+\sqrt[2]{33}}{4}$$

Answer

$$x=\frac{-1+\sqrt[2]{33}}{4}$$

Question 11

Solve the following Quadratic Equations using the Quadratic Formula:

$$-4x^2+20x-25=0$$

Accepted Answer

$$x=\frac{5}{2}$$

Answer

$$x=-\frac{5}{2}$$

Answer

$$x=\frac{\sqrt[2]{5}}{2}$$

Answer

$$x=-\frac{\sqrt[2]{5}}{2}$$

Question 12

Solve the following Quadratic Equations using the Quadratic Formula:

$$x+2\ =\ -3x^2$$

Accepted Answer

No Real Solution

Answer

All Real Numbers

Answer

$$x=\frac{\sqrt[2]{5}}{2}$$

Answer

$$x=-\frac{\sqrt[2]{5}}{2}$$

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