Warm up 1. a. b. 2.Simplify: (5y – 3)7 3. -5x – 10 = 2 – x + 4.

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Warm up 1. a. b. 2.Simplify: (5y – 3) x – 10 = 2 – x + 4

EXPONENTS Write each expression using exponents : a.2 x 2 x 2 x 2 x 2 b.5 · 5 c.½ · ½ · ½ d.y· y· y· y e.a x a x b x b Evaluate each expression : a.3² b.4³ c.(-2)³ d.(-6)² e.( )³

Laws of Exponents Multiplication 1. Write a 4 b 7 x a 2 b 3 without using exponents. DO NOT multiply them out. How many a ’ s are being multiplied? How many b ’ s are being multiplied? Rewrite your expression using exponents. 2. Write m 4 n 3 x m 3 n without using exponents. DO NOT multiply them out. a. How many m ’ s are being multiplied? How many n ’ s are being multiplied? b. Rewrite your expression using exponents. c. Look at Questions 1 and 2 above. What patterns do you notice? What rule can you generalize about multiplying expressions with like bases? Try your new rule: 3. (x 2 y 4 z 3 )(xy 5 z 7 ) 4.(r 6 s 4 t 3 )(r 2 s 3 t 2 u)(rs 7 t 5 ) Create your own. Solve on a separate piece of paper. Have a partner solve and then check their answer against your own.

Let’s try a few together. Look at the Kuta worksheet that you have been handed. We will try numbers 1 – 4 together. You will try numbers with your partner. You will work independently on the rest of the sheet. CLASSWORK

HOMEWORK: 9/17 Complete the Kuta worksheet: Multiplication of Exponents.