Question Find the roots Find the roots of the algebra expression x1=−2i,x2=2i Evaluate x2+4To find the roots of the expression,set the expression equal to 0 x2+4=0Move the constant to the right-hand side and change its sign x2=0−4Removing 0 doesn't change the value,so remove it from the expression x2=−4Take the root of both sides of the equation and remember to use both positive and negative roots x=±−4Simplify the expression More Steps Evaluate −4Evaluate the power 4×−1Evaluate the power 4×iEvaluate the square root More Steps Evaluate 4Write the number in exponential form with the base of 2 22Reduce the index of the radical and exponent with 2 2 2i x=±2iSeparate the equation into 2 possible cases x=2ix=−2iSolution x1=−2i,x2=2i Show Solution
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