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Math 9 Chapter 5 Factorization-7
1.
The square root of a
2
+2ab+2ac+2bc+b
2
+c
2
is + - (a+b+c).
a) False
b) True
2.
(x+1) is not a factor of x
3
-7x-6
a) False
b) True
3.
(x+4) (x+2) = x
2
+5x+4
a) False
b) True
4.
1/2 (2a
2
+2b
2
+2b
2
+2c
2
) = a
2
+b
2
+c
2
a) True
b) False
5.
x
4
+3x
3
-12x
2
-20x+48 is exactly divisible by x
3
+5x
2
-2x-24
a) False
b) True
6.
(a-b) (a
2
+ab+b
2
) x a
2
+ b
2
= (a+b)
(a
2
+b
2
) (a-b) (a+b) (a
2
+ab+b
2
)
a) True
b) False
7.
Factors of x
4
+64 are ___________.
a) (x
2
-4x+8)(x
2
+4x+8)
b) (x
2
+4x-8) (x
2
+4x+8)
c) (x-4) (x+4)
d) (x+8) (x+4)
8.
(x
2
-x+1) (x
2
+x+1) = _________.
a) x
8
+x
2
+1
b) (x
4
+x
2
+1)
c) x
4
+x
2
-1
d) x
4
-x
2
+1
9.
Factorization of 4x
2
+8x+3 is ______________.
a) (2x-3) (2x+1)
b) (2x-3) (2x-1)
c) (x+3) (x+1)
d) (2x+3) (2x+1)
10.
To factorize algebraic expressions of the form ax
2
+bx+c, we find two factors p & q such that p+q=b and ___________.
a) pq =ac
b) p=a
c) q=b
d) p+q =ac
e) p-q =ac
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