Unit 2: Exponents Review

What is on the test??? 1.Exponent Rules 2.Perfect Squares 3.Square Roots / Cube Roots 4.Estimating Non-Perfect Squares 5.Scientific Notation / Standard Form 6.Multi-Step Equations

Very small numbers, less than one, are represented using positive or negative exponents? Negative

Numbers raised to negative exponents can be expressed as fractions? Yes

State two rules we use when operating with exponents. When multiplying, add the exponents When multiplying, add the exponents When dividing, subtract the exponents When dividing, subtract the exponents Power to a power requires multiplying the exponents Power to a power requires multiplying the exponents Zero power, unless the base is zero, has an answer of 1 Zero power, unless the base is zero, has an answer of 1 Negative exponents, the base becomes its reciprocal with a positive exponent Negative exponents, the base becomes its reciprocal with a positive exponent

Solve for x: 16 + x = 20 x = 4

Solve for x: 2x = 28 x = 14

Solve for c: 3(c+4) = 18 + c 3c + 12 = 18 + c c = 3

What is the value of in scientific notation? 7.8 x 10 -5

What is the value in standard notation? 2.34 X 10³ 2340

A number raised to the power of zero is always equal to… 1

Simplify: X 6 * X 15 x 21

What is 4.25 x in Standard Form?.00425