1. Find the roots of the following quadratic equations by factorisation:

(i) x2–3x–10=0

(ii) 2x2+x–6=0

(iii) \(\sqrt2x^2+7x+5\sqrt2=0\)

(iv) \(2x^2-x+\frac{1}{8}=0\)

(v) 100x2–20x+1=0