Show that 3 5 27 is a solution of the equation x 7x 16 25 0 To show that 3 5 2i is a solution of the equation x2 7x 16 25 0 the first step is to substitute 3 5 2i for x in the equation x 7x 16 25 0 Perform the substitution 0 35 27 2 7 3 5 27 16 25 Do not evaluate What is the most useful next step OA Take the square root of both sides of the equation to clear the exponent OB Multiply both sides of the equation by the complex conjugate of the imaginary number in parentheses c Expand the right side of the equation D Divide both sides of the equation by the constant 16 25 Apply the next step 0 12 25 7i 7i 4 24 5 14 16 25 Do not combine like terms Now combine like terms 4