castor3515 castor3515 22-03-2024 Mathematics contestada What are the solutions of the equation (2x+3)²+8(2x+3)+11=0 ? Use u substitution and the quadratic formula to solve. a.x=(-4± √5)/2 b.x= (-7± √5)/2 c.x=-7 and x=-2 d,x=-1 and x=4