NCERT Solutions For Class 8 Chapter 14,Factorisation, Exercise 14.4 Table of Contents Toggle Class 8, Maths, Chapter 14, Exercise 14.4 SolutionsNCERT Solutions For Class 8 Maths, Chapter 14, Factorisation (All Exercises) Class 8, Maths, Chapter 14, Exercise 14.4 Solutions Find and correct the errors in the following mathematical statements.Q.1. 4(x – 5) = 4x – 5 Q.2. x(3x + 2) = 3×2 + 2 Q.3. 2x + 3y = 5xyQ.4. x + 2x + 3x = 5x Q.5. 5y + 2y + y – 7y = 0 Q.6. 3x + 2x = 5x^{2}Q.7. (2x)^{2} + 4(2x) + 7 = 2x^{2 }+ 8x + 7 Q.8. (2x)^{2 }+ 5x = 4x + 5x = 9xQ.9. (3x+2)^{2 }= 3x^{2} + 6x + 4 Q.10. Substituting x = –3 in(a) x^{2}+5x+4 gives (–3)^{2}+5(–3)+4 = 9+2+4=15(b) x^{2}–5x+4 gives (–3)^{2}–5(–3)+4= 9 – 15 + 4 =–2 (c) x^{2} + 5x gives (–3)^{2}+ 5(–3) =–9 –15 =–24 NCERT Solutions For Class 8 Maths, Chapter 14, Factorisation (All Exercises) Class 8, Maths, Chapter 14, Factorisation Class 8, Maths, Chapter 14, Factorisation, Exercise 14.1 Class 8, Maths, Chapter 14, Factorisation, Exercise 14.2 Class 8, Maths, Chapter 14, Factorisation, Exercise 14.3Class 8, Maths, Chapter 14, Factorisation, Exercise 14.4 ← You are here