Question

4x^2 + 5x = -1what are the solutions?

Answer 1

`\begin{gathered} 4x^2+5x=-1 \\ 4x^2+5x+(25)/(16)=-1+(25)/(16)=(9)/(16) \\ (2x+(5)/(4))^2=(9)/(16)\rightarrow2x+(5)/(4)=(3)/(4)\rightarrow2x=-(2)/(4)=-(1)/(2)\rightarrow x=-(1)/(4) \end{gathered}`