A2 Practice for 4B Quiz

Solve by using the square root property

100

x²=144

+-12

200

x²=25

+-5

300

(x+6)²=48

-6+-4sqrt(3)

400

(x-3)²=50

3+-5sqrt2

500

x²-14x+49=12

7+-2sqrt3

Complete the square

100

Complete the square.

x²+12x+_____

36

200

Complete the square.

x²-20x+_____

100

300

Complete the square.

x²-22x+____

121

400

Make a perfect square.

x²+24x+144

(x+12)²

500

Make a perfect square.

x²-16x+64

(x-8)²

Operations with i

100

(7-5i)+(-3-3i)

4-8i

200

(9+2i)+(4-5i)

13-3i

300

(9+5i)-(4-6i)

5+11i

400

(2-5i)(3+6i)

36-3i

500

(2-9i)(3+4i)

42-19i

Simplify radicals

100

4sqrt(28)

8sqrt(7)

200

3sqrt(32)

12sqrt(2)

300

sqrt(-45)

3isqrt(5)

400

sqrt(-72)

6isqrt(2)

500

5sqrt(-75)

25isqrt(3)

Mystery

100

Simplify.

i^4

1

200

Simplify.

i^203

-i

300

Find in simplest form.

abs(3+6i)

3sqrt5

400

Find in simplest form.

abs(5-5i)

5sqrt2

500

What is the conjugate of 

3-7i

3+7i