## Quiz by Angkol

Mathematics

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10 questions
• Q1

Which of the following is a perfect square trinomial?

$x^2-2x\ -\ 1$

$x^2+\ 3x\ +\ 4\$

$x^2+\ 2x\ +\ 1$

$x^2\ -\ 3x\ +\ 4$

30s
M9AL-Ia-b-1
• Q2

How many real roots does the quadratic equation x2 + 5x + 7 = 0 have?

Infinite

0

1

2

30s
• Q3

How many real roots does the quadratic equation x2 = 16?

2

1

0

Infinite

30s
• Q4

What will be added to the equation x2 + 24x + _____ to make it a perfect square trinomial?

12

144

576

24

30s
• Q5

Which of the following equations can be solved easily by extracting square roots?

$2w^2+\ 7w\ -\ 3\ =\ 0$

$x^2\ +\ 7x\ +\ 12\ =0$

$3v^2\ +\ 2v\ -\ 8^2\ =\ 0$

$16t^2-\ 9\ =\ 0$

30s
• Q6

Which of the following equations can be solved easily by factoring?

$r^2-10r\ =\ -17$

$t^2\ +\ 4t\ =\ -1$

$w^2+\ 6w\ -\ 11\ =\ 0$

$h^2+\ 16h\ =\ 16$

30s
• Q7

In solving the equation x2 + 14x = 32 by completing the square, what will be added to both sides of the equation to make the left side of the equation a perfect square trinomial?

14

49

2401

7

30s
• Q8

What are the zeros of 3x2 – 7x – 6 = 0?

$-3,\ -\frac\left\{2\right\}\left\{3\right\}$

$3,\ \frac\left\{2\right\}\left\{3\right\}$

$3,\ -\frac\left\{2\right\}\left\{3\right\}$

$-3,\ \frac\left\{2\right\}\left\{3\right\}$

30s
• Q9

Which of the following are the roots of the equation x2 – 3x – 54? Choose the simplified solution.

$\left\\left\{9,\ -6\right\\right\}$

$\left\\left\{-9,\ 6\right\\right\}$

$\left\\left\{9,\ 6\right\\right\}$

$\left\\left\{-9,\ -6\right\\right\}$

30s
• Q10

What are the values of x in the equation -6x2 + 36x = 0?

$x\ =\ 0\ \ and\ \ x\ =-36$

$x=0\ and\ \ x=6$

$x\ =\ -6\ and\ \ x\ =\ 0$

$x\ =\ 6\ and\ x\ =\ -6$

30s

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