Free Printable parts of the quadratic formula

1.

Given: $4x^2+7x-8=0$ what is $b^2?$

a)

-32

b)

7

c)

-56

d)

49

2.

Given: $-2x^2+9x+15\ =\ 0,$ what is ac?

a)

-30

b)

81

c)

225

d)

135

3.

Given: $x^2+5x+2=0,\$ what is $b\div c?$

a)

0.4

b)

5

c)

2.5

d)

1

4.

Given: $x^2+10x+21,\$ what is bc?

a)

100

b)

210

c)

10

d)

1

5.

$3x^2+11x-8=0,\$ what is 4ac?

a)

33

b)

-24

c)

-88

d)

-96

6.

$4x^2-28x+72,$ what is $c\div a?$

a)

18

b)

36

c)

4

d)

-28

7.

$2x^2+20x+42\ =\ 0,\$ what is $b^2?$

a)

21

b)

4

c)

400

d)

1764

8.

$-2x^2+8x-3=0,\$ what is 4ac?

a)

-12

b)

-16

c)

-4

d)

24

9.

$x^2-3x-40,\$ what is $c^2?$

a)

-80

b)

1

c)

1600

d)

-3

10.

$3x^2-15x+10,\$ what is $b^2?$

a)

225

b)

-150

c)

-30

d)

-225

parts of the quadratic formula

Total questions: 10

Worksheet time: 5mins

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