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Important questions for Factorization Class 8 Maths Chapter 14



In this page we have Important questions for Factorization Class 8 Maths Chapter 14 . Hope you like them and do not forget to like , social share and comment at the end of the page.
Question 1
User the below expression to solve the below problems
a2 –b2 = (a - b )(a + b)
a. x2 - 81

b. 49a2 - 36
c. 121 – 49z2
d. 4x2 - 9y2
e. 16x2 - 225y2
f. 9x2y2 - 25
g. 16x2 - 81

h. (a + b)2 - 9c2
i. a - (x – y )2
j. 4(x + y)2 - x2
k. 36(a + b)2 - 16(a - b)2

l. 20x2 – 45y2

m. z3 – 81z
n. 12p2 - 27
o. 3z5 – 27z3

p. 36a2b2 - 8

q. z2 - x2 – 2x - 1
r. 9x2 - y2 + 4y - 4
s. p2 – 2pq + q2 - r2


Question 1
User the below expression to solve the below problems
(a+b)2 = (a2 + b2 +2ab)
(a-b)2 = (a2 + b2 -2ab)
1. p2 + 4p + 5

2. x2 + 19x + 81

3. 3 + 6z + z2
4. 9 + 6x + x2
5. z2 + 6xz + 9x2
6. 9x2 + 30x +25

7. 36z2 + 12z + 1

8. 9x2 + 30x + 25
9. z2 + z + 1/4
10. 4z2 – 6z + 9

11. 4p2 – 20p + 25

12. 9x2 - 30x + 25
13. 1 – 2y + y2
14. 4 – 12y+ 9y2

15. x2y2 – 6xyz + 9z2
16. p2 – 6pq + 9p2

Question 3
Find and correct the errors in the statement: (3x)2 + 5x = 9x + 5x = 14x

Answer
LHS = (2x)2 + 5x =4x2+5x
RHS = 9x + 5x = 14x
Third = 14x
LHS≠ RHS =third part
Correct statement would be
(3x)2 + 5x = 9x2+5x
Question 4
Find and correct the errors in the statement: (4x + 2)2 = 2x2 + 16x + 4

Answer
LHS = (4x + 2)2 =16x2 +16x+4
RHS = 2x2 + 16x + 4
LHS≠ RHS
Correct statement would be
(4x + 2)2 =16x2 +16x+4
Question 5 
Find and correct the errors in the statement: (z - 1)2 = z2 - 1

Answer
LHS = (z - 1)2 =z2 -2z+1
RHS = z2 - 1
LHS≠ RHS
Correct statement would be
(z - 1)2 =z2 -2z+1
Question 6
Find and correct the errors in the statement: (y + 6)2 = y2 + 36

Answer
LHS=( y + 6)2 =y2 +12z+36
RHS = y2 + 36
LHS≠ RHS
Correct statement would be
( y + 6)2 =y2 +12z+36

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