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Intermediate Algebra

OPENSTAX

$Math Studyset Vaia Explanations$ Math

OER 2017 Edition · 1346 pages

ISBN: 9780998625720

Chapter 8: Q. 567RE (page 856)

In the following exercises, add or subtract.
$(6 + i) - (- 2 - 4 i)$

Short Answer

Expert verified

$8 + 5 i$

Step by step solution

01

Given information

$(6 + i) - (- 2 - 4 i)$

02

Solution

$\begin{array}{rcl} (6 + i) - (- 2 - 4 i) & = & 6 + i + 2 + 4 i \\ = & 6 + 2 + i (1 + 4) \\ = & 8 + 5 i \end{array}$

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Most popular questions from this chapter

Use the Quotient Property to simplify square roots.

(a) $\sqrt{\frac{75 r^{6} s^{8}}{48 r s^{4}}}$

(b) $\sqrt[3]{\frac{24 x^{8} y 4}{81 x^{2} y}}$

(c) $\sqrt[4]{\frac{32 m^{9} n^{2}}{162 m n^{2}}}$

In the following exercises, use the Product Property to simplify radical expressions a $\sqrt[5]{64}$ , b. $\sqrt[3]{256}$

In the following exercises, solve.

$\sqrt{4 x - 3} = 7$

What is the difference between $9^{2}$ and $\sqrt{9}$ ?

In the following exercises, simplify.

(a) $32^{\frac{2}{5}}$

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