Question Simplify the expression 5r−1 Evaluate 5r−i4Solution More Steps Evaluate i4Calculate i2×i2Calculate (−1)(−1)Calculate 1 5r−1 Show Solution Find the roots r=51Alternative Form r=0.2 Evaluate 5r−i4To find the roots of the expression,set the expression equal to 0 5r−i4=0Evaluate the power More Steps Evaluate i4Calculate i2×i2Calculate (−1)(−1)Calculate 1 5r−1=0Move the constant to the right-hand side and change its sign 5r=0+1Removing 0 doesn't change the value,so remove it from the expression 5r=1Divide both sides 55r=51Solution r=51Alternative Form r=0.2 Show Solution
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