NCERT, Class 10, Quadratic Equations, Chapter–4, Exercise-4.1 – Step wise solution of each question with complete explanation

Q. 1. Check whether the following are quadratic equations: (i) (x+1)^2=2(x–3), (ii) x^2–2x=(–2)(3–x), (iii) (x–2) (x+1)=(x–1) (x+3), (iv) (x–3) (2x+1)=x(x+5), (v) (2x–1) (x–3)=(x+5) (x–1), (vi) x^2 +3x+1=(x–2)^2, (vii) (x+2)^3=2x(x^2–1), (viii)…