Question Find the roots Find the roots of the algebra expression a1=−7,a2=7Alternative Form a1≈−2.645751,a2≈2.645751 Evaluate a2−7To find the roots of the expression,set the expression equal to 0 a2−7=0Move the constant to the right-hand side and change its sign a2=0+7Removing 0 doesn't change the value,so remove it from the expression a2=7Take the root of both sides of the equation and remember to use both positive and negative roots a=±7Separate the equation into 2 possible cases a=7a=−7Solution a1=−7,a2=7Alternative Form a1≈−2.645751,a2≈2.645751 Show Solution
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