Question Simplify the expression u4−223 Evaluate u4×1−3−220Any expression multiplied by 1 remains the same u4−3−220Solution u4−223 Show Solution Find the roots u1=−4223,u2=4223Alternative Form u1≈−3.864348,u2≈3.864348 Evaluate u4×1−3−220To find the roots of the expression,set the expression equal to 0 u4×1−3−220=0Any expression multiplied by 1 remains the same u4−3−220=0Subtract the numbers u4−223=0Move the constant to the right-hand side and change its sign u4=0+223Removing 0 doesn't change the value,so remove it from the expression u4=223Take the root of both sides of the equation and remember to use both positive and negative roots u=±4223Separate the equation into 2 possible cases u=4223u=−4223Solution u1=−4223,u2=4223Alternative Form u1≈−3.864348,u2≈3.864348 Show Solution
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