Additional Mathematics 0606 / Equations, inequalities and graphs / 3.1003.100: Completing the square and related equation0606/21/O/N/22 — Question 6 · 9 marksMark as done · Save for later · Show all solutions(a)Write 3x2+15x−203x^{2}+15x-203x2+15x−20 in the form a(x+b)2+ca(x+b)^{2}+ca(x+b)2+c.[4]▸ Answer(b)State the minimum value and the xxx-value where it occurs.[2]▸ Answer(c)Solve 3y2/3+15y1/3−20=03y^{2/3}+15y^{1/3}-20=03y2/3+15y1/3−20=0 to 333 s.f.[3]▸ Answer▸ Official mark scheme← 3.76: Line cutting a cubic curve3.77: Solve an equation in ex\mathrm{e}^{x}ex →
