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Problem 115
In Exercises 111–120, use the order of operations to simplify each expression. 8−3[−2(2−5)−4(8−6)]
Problem 115
Add or subtract as indicated. [(2x-7)/(x^2-9)]-[(x-10)/(x^2-9)]
Problem 117
Add or subtract as indicated. 12/25x^2+11/15x^3
Problem 118
In Exercises 111–120, use the order of operations to simplify each expression. 6(−4)−5(−3)/(9−10)
Problem 121
Simplify each complex rational expression. (1/x-1/2)/(1/3-x/6)
Problem 121
In Exercises 121–128, write each English phrase as an algebraic expression. Then simplify the expression. Let x represent the number. A number decreased by the sum of the number and four
Problem 123
In Exercises 121–128, write each English phrase as an algebraic expression. Then simplify the expression. Let x represent the number. Six times the product of negative five and a number
Problem 123
Simplify each complex rational expression. [3-1/(x+3)]/[3+1/(x+3)]
Problem 126
In Exercises 121–128, write each English phrase as an algebraic expression. Then simplify the expression. Let x represent the number. The difference between the product of six and a number and negative two times the number
Problem 128
In Exercises 121–128, write each English phrase as an algebraic expression. Then simplify the expression. Let x represent the number. Eight decreased by three times the sum of a number and six
Problem 161
Exercises 159–161 will help you prepare for the material covered in the next section. If 6.2 is multiplied by 10^3, what does this multiplication do to the decimal point in 6.2?