Math 017 Materials With Exercises

Ex.8Simplify by raising to the indicated power.0a) ( 3x )b)0c) 3 xe)g)0abc f)0ab ch)d)03xa( b c)0(abc)a0b0c00Ex. 9 While copying expressions from a blackboard, John kept forgetting to copy parentheses.33a) (x)John copied as xb)c)d)e)f)g)4( x) John copied as7 (x) John copied as3a ( 2b)John copied as( b3a 2 ) John copied as3a 2(b)John copied asa )m( bc John copied as44 x7 x3a 2b3a 2b3a 2bmabc4 2x2xh) John copied as y yDetermine if what was on the board and what John copied has the same meaning, i.e. are theparentheses necessary. Write “same” or “different” for each.3Ex.10 Evaluate a) 2x b)when x 100. Explain why you did not get the same result.( 2x)3Ex.11 Fill in the blanks, each time using one of the following words: add, subtract, multiply, divide.a) To multiply exponential expressions with the same bases one needs to __________ theexponents.b) To _____________ exponential expressions with the same bases one needs to subtract theirexponents.c) To raise an exponential expression to another power one needs to _________ the exponents.Ex.12 Write as a single exponential expression.3 20a) n nb)(s7 ) 28xc) d) b 7 b2x24e) ( 4x)f) 2mm1g) b2b h) xx209a3 4i) j) x x x4a4a3k) l) x4 22ax5546