The equation x2+2px+(3p+4)=0x^2 + 2px + (3p + 4) = 0x2+2px+(3p+4)=0, where p p\,p is a positive constant, has equal roots.
Find the value of ppp.
For this value of ppp, solve the equation x2+2px+(3p+4)=0x^2 + 2px + (3p + 4) = 0x2+2px+(3p+4)=0.
18 exam-style questions on Edexcel A Level Old Maths Algebra and Functions 1. Each one has a worked solution and a mark scheme showing where the marks go.