4.4 - 4.6 Review

Misc

100

In order to complete the square, a must equal...

1

200

Solve by taking square roots:

4x²+18 = 0 

(3isqrt2)/2

300

Find the discriminant and state the number and type of solutions for 2x² - 3x + 4 = 8

2 real irrational solutions

Completing the Square

100

Solve: x² + 8x + 7 = 0 

x = -7, x = -1

200

Solve: x² - 6x + 40 = 6

3 plus or minus 5i

300

Solve: x² + 12x = -12

-6 plus or minus 2 root 6

Add/Subtract/Reduce Complex Numbers

100

(2+3i) - (4+7i)

-2 - 4i

200

sqrt(-75) * 2sqrt(-8

-20sqrt(6

300

-3i^17 *4i^10*6sqrt(-1

-72

Multiplying/Dividing Complex

100

(3+2i)(5-i)

17+7i

200

(2sqrt3)/sqrt18

sqrt6/3

300

(2i)/(4+i)

(2+8i)/17

Quadratic Formula

100

9x² - 64 = 0

x = plus or minus 8/3

200

x² - 10x + 14 = - 11

x = 5 

300

-9x² + 3x - 8 = 5

x = 1 plus or minus i root 51 all over 6