Quiz about เลขยกกำลังม.2

Question 1

$$Write\ in\ \exp onential\ form:\ \left(-\frac{2}{3}\right)\left(-\frac{2}{3}\right)\left(-\frac{2}{3}\right)\left(-\frac{2}{3}\right)\left(-\frac{2}{3}\right)$$

Accepted Answer

$$\left(-\frac{2}{3}\right)^5$$

Answer

$$\left(-\frac{2}{3}\right)^8$$

Answer

$$\left(-\frac{2}{3}\right)^7$$

Answer

$$\left(-\frac{2}{3}\right)^6$$

Question 2

What is the exponential form of (2ab²)(5ab³)(2ab²)(2ab²)(5ab³)(5ab³)?

Accepted Answer

$$\left(2ab^2\right)^3\left(5ab^3\right)^3$$

Answer

$$\left(2ab^2\right)^2\ \left(5ab^3\right)^2$$

Answer

$$10a^2b^5$$

Answer

$$10a^3b^5$$

Question 3

Write $$\left(\frac{2}{5}\right)^4$$ as repeated multiplication.

Accepted Answer

$$\left(\frac{2}{5}\right)\left(\frac{2}{5}\right)\left(\frac{2}{5}\right)\left(\frac{2}{5}\right)$$

Answer

$$\left(\frac{2}{5}\right)\left(\frac{3}{5}\right)\left(\frac{2}{5}\right)\left(\frac{3}{5}\right)$$

Answer

$$\left(\frac{2}{3}\right)\left(\frac{2}{5}\right)\left(\frac{2}{3}\right)\left(\frac{2}{5}\right)$$

Answer

$$\left(\frac{2}{3}\right)\left(\frac{2}{3}\right)\left(\frac{2}{3}\right)\left(\frac{2}{3}\right)$$

Question 4

What is the exponential form of 216?

Accepted Answer

$$2^3 imes3^3$$

Answer

$$2^3 imes3^2$$

Answer

$$2^2 imes3^3$$

Answer

$$2^3 imes3^4$$

Question 5

Express 243 in exponential form.

Accepted Answer

$$3^5$$

Answer

$$5^5$$

Answer

$$4^5$$

Answer

$$2^5$$

Question 6

Identify the base(s) of $$2a^4b^2c^3$$ .

Accepted Answer

2,a, b, c

Answer

a, b, c

Answer

1, 4, 2, 3

Answer

4, 2, 3

Question 7

Identify the powers of $$m^5n^2pq^3$$ .

Accepted Answer

5, 2, 1, 3

Answer

m, n, p, q

Answer

5, 2, 3

Answer

10

Question 8

Write the exponential form of (-3)(-3)(3)(3)(-3)(3)(-3)(3)(3).

Accepted Answer

$$3^9$$

Answer

$$\left(-3\right)^8$$

Answer

$$3^8$$

Answer

$$\left(-3\right)^9$$

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