Exponents and Polynomials - XYZ Custom Plus

606Chapter 9 Exponents and PolynomialsFind the product of the given binomials by using the diagrams. [9.3]21. (x + 3) and (x + 5)22. (3x + 7) and (5x + 2)x 5 3x 7x5x3x 2 + 8x + 15215x 2 + 41x + 14Simplify each expression completely. Your answer should have only positive exponents. [9.4]23. 5 −324. (−4) −225. 3 5 ⋅ 3 −725. 3 5 ⋅ 3 −7​_1125 ​ ​_ 116 ​ ​_ 1 9 ​ ​_ 1 9 ​27. y 2 ⋅ y −6​ 1 _y 4​28. x −3 ⋅ x 8 ⋅ x −629. ​_x 7x ​30. ​ x 79​_ 1 x ​ ​_ 1 x 2​ x 16_x −9​31. ​ 25 _2 8 ​_3 −10​32. ​ 3−6​_ 1 8 ​ 8133. (4x −3 )(−5x −5 )−​ 20 _x 8 ​34. ​_x −6 ⋅ x −2​x 2x −10Write each number in scientific notation. [9.5]35. 73,800,0007.38 × 10 7 36. 0.0029352.935 × 10 −3Write each number in standard form. [9.5]37. 4.4 × 10 94,400,000,00038. 1.6 × 10 −50.000016Simplify each expression and write all answers in scientific notation. [9.6]39. (4.8 × 10 7 )(3.6 × 10 −5 )40. (460,000)(0.00056)1.728 × 10 3 2.576 × 10 26.8 × 10641. ​_3.4 × 10 −8​42. ​_0.0000250.00005 ​2 × 10 14 5 × 10 −143. ​___(4.5 × 10−6 )(2.4 × 10 5 )​44. ​__(392)(500,000) ​1.2 × 10 6 0.00079 × 10 −7 2.8 × 10 11