# Solve. {eq}\displaystyle x = \sqrt {x + 12} {/eq}

## Question:

Solve.

{eq}\displaystyle x = \sqrt {x + 12} {/eq}

A trinomial is a polynomial made up of three polynomials. A quadratic trinomial is a trinomial of the form {eq}ax^2 + bx + c {/eq} where {eq}x {/eq} represents the variable and {eq}a,b, {/eq} and {eq}c {/eq} are nonzero constants.

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To start with the solution, get the square of both sides of the equation such that:

\begin{align} x &= \sqrt {x + 12} \\[0.3cm] (x)^2 &= (\sqrt...