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Chapter 1: Problem 1
Add or subtract as indicated and write the result in standard form. $$ (7+2 i)+(1-4 i) $$
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In Exercises 95鈥�102, use interval notation to represent all values of x satisfying the given conditions. $$ y=|2 x-5|+1 \text { and } y>9 $$
When 4 times a number is subtracted from 5, the absolute value of the difference is at most 13. Use interval notation to express the set of all numbers that satisfy this condition.
When 3 times a number is subtracted from 4, the absolute value of the difference is at least 5. Use interval notation to express the set of all numbers that satisfy this condition.
Will help you prepare for the material covered in the next section. Factor completely: \(x^{3}+x^{2}-4 x-4\).
Find all values of \(x\) satisfying the given conditions. $$ y_{1}=x-3, y_{2}=x+8, \text { and } y_{1} y_{2}=-30 $$
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