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Factoring Worksheets - Page 3

Factoring Worksheets
  • Page 3
 21.  
Factor:
- 5x3 + 4x2 + 20x - 16
a.
- (5x + 4)(x - 2)2
b.
- (5x + 4)(x + 2)(x - 2)
c.
- (5x - 4)(x - 2)2
d.
- (5x - 4)(x + 2)(x - 2)


Answer: (d)


Correct answer : (4)
 22.  
Factor 4x3 + 8x2 + 16x completely.
a.
x(x2 + 2x + 4)
b.
4x(x2 + 2x + 4)
c.
4x(x2 - 4x + 2)
d.
4x(x2 - 2x + 4)


Answer: (b)


Correct answer : (2)
 23.  
Factor.
- 3a2 - 27a - 36
a.
- 3(a2 - 9a - 12)
b.
- 3(a2 + 9a + 12)
c.
- 9(a2 - 9a - 12)
d.
- 3(a2 + 9a - 12)


Answer: (b)


Correct answer : (2)
 24.  
Express as a perfect square.
h2 - 14h + 49
a.
(h - 7)2
b.
(h + 7)2
c.
(h - 9)2
d.
(h + 8)2


Answer: (a)


Correct answer : (1)
 25.  
If the area of a square board is (25z2 + 40z + 16) cm2, then find the length of its side.
a.
(6z + 4) cm
b.
(5z + 5) cm
c.
(5z + 4) cm
d.
(5z - 4) cm


Answer: (c)


Correct answer : (3)

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