Infinite Algebra 2 - HW

Alg2A Unit 4 Complex Numbes

Name___________________________________ ID: 1

©R ^2H0[1K5T jKSuwtkas uStopf`twwEaQr`eb ELLLLCd.m h AA[lwlU trFiXgxhOtWse oruezsTerrmvlePdr.

HW

Group#________________

Simplify. 1) (-4 - 4i) - (-3 - i)

2) (-4 + 7i) + (-5 - 2i)

3) (1 + i) + (2 - i)

4) (3 + 3i) - (-8 - 5i)

5) (3i)(6i)(3 - 6i)

6) (3 - 2i)(-4 + i)

7) (-2i)(7i)(-6 + 3i)

8) (-3 - 2i)(-7 + i)

9)

3 -7 - 10i

10)

9 5-i

Worksheet by Kuta Software LLC

-1-

©r g2R0K1_5e ]K`uStcaj HSpolfNtSwUaYrIeo nLvLTCq.E S EAGlAlQ ^rEiMgohotGsb IrReUsKe\rxv\ezdH.I v QMTa_dNei twDiFtJhr nI\nHfNiqnNiztae[ RAflVgBeHbPrSar w2m.

11)

8i 3 - 5i

12)

6 -9 + 10i

Graph each number in the complex plane. 14) -5 - i

13) 5 + 2i Imaginary

Imaginary

Real

Real

Identify each complex number graphed. 15)

16)

Imaginary

Real

Imaginary

Real

Worksheet by Kuta Software LLC

-2-

©\ Y2S0d1J5i dK]udtLaU SSxoofOtvwIaorQeM XLpL_Cf.r q zABlPlZ yrHipgNhKt[sP MrbeUsrevrtvFeDdn.T a yM\a[dCef uwriFtyhk XIqnmfAiLnZi]tpe[ cAolWg^eSb_rHai E2C.

Answers to HW (ID: 1) 1) -1 - 3i 5) -54 + 108i -21 + 30i 9) 149 13) Imaginary

2) -9 + 5i 6) -10 + 11i 45 + 9i 10) 26 14) Imaginary

Real

3) 3 7) -84 + 42i 12i - 20 11) 17 15) 4 - 4i

4) 11 + 8i 8) 23 + 11i -54 - 60i 12) 181 16) 5 - i

Real

Worksheet by Kuta Software LLC

-3-

©z Z2q0y1^5H IKuuBtnaB JSXoofytewoaLrIem \LdLoCk.k K YAklqlp \rkiXgvhotIsy DrVeDsmefrhvgeRdB.G B UM^azdZeK rwuiotCh\ SItnvfyi]npiRtWeE AAslkg]ewbDrpay J2g.