# Factorisation : Exercise 14.4 (Mathematics NCERT Class 8th)

**Find and correct the errors in the following mathematical statements.
**

**Q.1.**

**Given,**

*Sol.*LHS =

=

â‰ RHS

Correct statement:

**Q.2. **

** Sol.** Given,

LHS =

=

â‰ RHS

Correct statement:

**Q.3. **

** Sol.** Given,

LHS =

â‰ RHS

Correct statement:

**Q.4. **

** Sol.** Given,

LHS =

=

â‰ RHS

Correct statement:

**Q.5 **

** Sol.** Given,

LHS =

=

=

â‰ RHS

Correct statement:

**Q.6 **

** Sol.** Given,

LHS =

=

â‰ RHS

Correct statement:

**Q.7 **

** Sol.** Given,

LHS =

=

â‰ RHS

Correct statement:

**Q.8 **

** Sol.** Given,

LHS =

=

â‰ RHS

Correct statement:

**Q.9 **

** Sol.** Given,

LHS =

=

â‰ RHS

Correct statement:

**Q.10 **Substituting in

(a) gives

(b) gives

(c) gives

** Sol.** (a) gives

LHS =

Substituting , we get,

=

=

=

â‰ RHS

Correct statement: gives

(b) gives

LHS =

Substituting , we get,

=

=

=

â‰ RHS

Correct statement: gives

(c) gives

LHS =

Substituting , we get,

=

=

=

â‰ RHS

Correct statement: gives

**Q.11 **

** Sol.** LHS =

=

â‰ RHS

Correct statement:

**Q.12 **

** Sol.** LHS =

=

â‰ RHS

Correct statement:

**Q.13 **

** Sol.** LHS =

=

=

â‰ RHS

Correct statement:

**Q.14 **

** Sol.** LHS =

=

=

â‰ RHS

Correct statement:

**Q.15 **

** Sol.** LHS =

=

=

â‰ RHS

Correct statement:

**Q.16 **

** Sol.** LHS =

=

â‰ RHS

Correct statement:

**Q.17 **

** Sol.** LHS =

=

=

â‰ RHS

Correct statement:

**Q.18 **

** Sol.** LHS =

â‰ RHS

Correct statement:

**Q.19 **

** Sol.** LHS =

â‰ RHS

Correct statement:

**Q.20 **

** Sol.** LHS =

=

=

â‰ RHS

Correct statement:

**Q.21**

** Sol.** LHS =

=

=

â‰ RHS

Correct statement:

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