Question Simplify the expression u4−222 Evaluate u4×1−2−220Any expression multiplied by 1 remains the same u4−2−220Solution u4−222 Show Solution Find the roots u1=−4222,u2=4222Alternative Form u1≈−3.860008,u2≈3.860008 Evaluate u4×1−2−220To find the roots of the expression,set the expression equal to 0 u4×1−2−220=0Any expression multiplied by 1 remains the same u4−2−220=0Subtract the numbers u4−222=0Move the constant to the right-hand side and change its sign u4=0+222Removing 0 doesn't change the value,so remove it from the expression u4=222Take the root of both sides of the equation and remember to use both positive and negative roots u=±4222Separate the equation into 2 possible cases u=4222u=−4222Solution u1=−4222,u2=4222Alternative Form u1≈−3.860008,u2≈3.860008 Show Solution
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