NCERT Solutions For Class 8 Maths Chapter 14 Factorisation Ex 14.4

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Textbook	NCERT
Board	CBSE
Category	NCERT Solutions
Class	Class 8
Subject	Maths
Chapter	Chapter 14
Exercise	Class 8 Chapter 14 Factorisation Exercise 14.4
Number of Questions Solved	6

NCERT Solutions for Class 8 Maths Chapter 14 Factorisation Ex 14.4

NCERT TEXTBOOK EXERCISES

Question 1. 4(x – 5) = 4x – 5

Solution. 4(x – 5) = 4x – 20

Question 2. x(3x + 2) = 3x²+2

Solution. x(3x + 2) = 3x²+2x

Question 3. 2x + 3y = 5xy

Solution.
2x + 3y = 2x + 3y

Question 4. x + 2x + 3x = 5x

Solution.
x + 2x + 3x = 6x

Question 5. 5y + 2y + y – 7y = 0

Solution.
5y + 2y + y – 7y – y

Question 6. 3x + 2x = 5x²

Solution..
3x + 2x = 5x

Question 7. ${ \left( 2x \right) }^{ 2 } + 4(2x) + 7 = { 4x }^{ 2 } + 8x + 7$

Solution.
${ \left( 2x \right) }^{ 2 } + 4(2x) + 7 = { 4x }^{ 2 } + 8x + 7$

Question 8. ${ \left( 2x \right) }^{ 2 } + 5x = 4x + 5x = 9x$

Solution.
${ \left( 2x \right) }^{ 2 } + 5x = { 4x }^{ 2 } + 5x$

Question 9. (${ \left( 3x+2 \right) }^{ 2 } = { 6x }^{ 2 }+ 12x + 4.$.

Solution.
${ \left( 3x+2 \right) }^{ 2 } = { 9x }^{ 2 }+ 12x + 4.$

Question 10.

Solution.

Question 11. (y−3)²=y²–9

Solution.

${ \left( y-3 \right) }^{ 2 } = { y }^{ 2 } – 2(y)(3) + { 3 }^{ 2 }$
= y²–6y+9
and not equal to y²–9

Question 12. ${ \left( z+5 \right) }^{ 2 } = { z }^{ 2 } + 25$

Solution.

${ \left( z+5 \right) }^{ 2 } = { z }^{ 2 } + 2(z) (5) + { 5}^{ 2 }$
= z²+10z+25
and not equal to z²+25

Question 13. $\left( 2a+36 \right) \left( a-b \right) = { 2a }^{ 2 }-{ 3b }^{ 2 }$

Solution.

Question 14. $\left( a+4 \right) \left( a+2 \right) = { a}^{ 2 } + 8$

Solution.

Question 15. $\left( a-4 \right) \left( a-2 \right) = { a}^{ 2 }-8$

Solution.

Question 16. 3x²/3x²=0

Solution.
3x²/3x²=1 and not equal to 0

Question 17. $\frac { { 3x }^{ 2 }+1 }{ { 3x }^{ 2 } } =1+1=2$

Solution.
$\frac { { 3x }^{ 2 }+1 }{ { 3x }^{ 2 } } =\frac { { 3x }^{ 2 } }{ { 3x }^{ 2 } } +\frac { 1 }{ { 3x }^{ 2 } }$
=1+1/3x² and not equal to 1 + 1 = 2

Question 18. $\frac { 3x }{ 3x+2 } =\frac { 1 }{ 2 }$

Solution.
$\frac { 3x }{ 3x+2 } =\frac { 3x }{ 3x+2 }$ and not equal to 1/2

Question 19. $\frac { 3 }{ 4x+3 } =\frac { 1 }{ 4x }$

Solution.
$\frac { 3 }{ 4x+3 } =\frac { 3 }{ 4x+3 }$ and not equal to 1/4x

Question 20. $\frac { 4x+5 }{ 4x } =5$

Solution.
$\frac { 4x+5 }{ 4x } =\frac { 4x }{ 4x } +\frac { 5 }{ 4x } =1+\frac { 5 }{ 4x }$ and not equal to 5

Question 21. $\frac { 7x+5 }{ 5 } =7x$

Solution.
$\frac { 7x+5 }{ 5 } =\frac { 7x }{ 5 } +\frac { 5 }{ 5 } =\frac { 7x }{ 5 } +1$ and not equal to 7x

NCERT Solutions for Class 8 Maths Chapter 14 Factorisation Exercise 14.4 PDF

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Other Chapter of Class 8 Maths Chapter 14 Factorisation

• Class 8 Maths Chapter 14 Factorisation Ex 14.1
• Class 8 Maths Chapter 14 Factorisation Ex 14.2
• Class 8 Maths Chapter 14 Factorisation Ex 14.3
• Class 8 Maths Chapter 14 Factorisation Ex 14.4