9 The amount of money invested is the 10 The value of the principal after a

9 the amount of money invested is the 10 the value of

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9.The amount of money invested is the . 10.The value of the principal after a certain period of time isthe . 11.The value is the principal that must be investedtoday to grow to a specified amount in the future. 12.The expression (ab)2is the of a sum.13.The expression a2b2is the of two squares. 14.If abc, then ais the , bis the , andcis the . 15.A notation for expressing large or small numbers usingpowers of 10 is notation. Enriching Your Mathematical Word PowerFill in the blank.1.Ais an expression containing one or more variablesraised to whole number powers.2.Ais a single term or a finite sum of terms. 3.The of a polynomial is the highest degree of any ofits terms. 4.The coefficient of the first term of a polynomial when it iswritten in order of decreasing exponents is the coefficient.5.A polynomial with one term is a . 6.A polynomial with two terms is a .7.A polynomial with three terms is a .
4-61Chapter 4Review Exercises31511.2ba2312.32y2 313.63xz2y65314.6a33ab41b28 44.2Negative ExponentsSimplify each expression. Assume all variables represent nonzero real numbers. Use only positive exponents in answers.15.2316.2417.17118.12219.x5x820.a3a921.aa18222.aa10423.(x3)424.(x5)1025.(2x3)326.(3y5)227.3ba3228.a5b234.3Scientific NotationWrite each number in standard notation.29.8.3610630.3.410731.5.710432.410333.4.5 million34.34 trillion35.3561 thousand36.0.6 billionWrite each number in scientific notation.37.8,070,00038.90,00039.0.00070940.0.000000541.1.2 trillion42.0.8 million43.500 thousand44.455.6 billionPerform each computation without a calculator. Write theanswer in scientific notation.45.(5(2 104))346.(6(2 103))247.48.(3 1012)(5 104)30 109(2 109)(3 107)5(6 104)49.50.4.4Addition and Subtraction of PolynomialsPerform the indicated operations.51.(2w6) (3w4)52.(1 3y) (4y6)53.(x22x5)(x24x9)54.(3 5xx2)(x27x8)55.(5 3ww2)(w24w9)56.(2t23t4)(t27t2)57.(4 3mm2)(m26m5)58.(n3n29)(n4n35)Find the following values.59.Find the value of the polynomial x39xif x3.60.Find the value of the polynomial x27x1 if x4.61.Suppose that P(x)x3x2x 1. Find P(2).62.Suppose that Q(x)x26x8. Find Q(3).4.5Multiplication of PolynomialsPerform the indicated operations.63.5x2(10x9)64.3h3t22h2t565.(11a7)266.(12b3)267.x5(x3)68.x4(x9)69.5x3(x25x4)70.54x2(x5)71.3m2(5m3m2)72.4a4(a22a4)73.(x5)(x22x10)74.(x2)(x22x4)75.(x22x4)(3x2)76.(5x3)(x25x4)4.6Multiplication of BinomialsPerform the indicated operations.77.(q6)(q8)78.(w5)(w12)79.(2t3)(t9)80.(5r1)(5r2)81.(4y3)(5y2)82.(11y1)(y2)(1200)(0.00002)0.0000004(4,000,000,000)(0.0000006)(0.000012)(2,000,000)
316Chapter 4Exponents and Polynomials4-62115.(x3x211x10)(x1)116.(y39y23y6)(y1)Write each expression in the formquotientredmivaiisnodrer.

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