Question Simplify the expression z2−10 Evaluate z×z−10Solution z2−10 Show Solution Find the roots z1=−10,z2=10Alternative Form z1≈−3.162278,z2≈3.162278 Evaluate z×z−10To find the roots of the expression,set the expression equal to 0 z×z−10=0Multiply the terms z2−10=0Move the constant to the right-hand side and change its sign z2=0+10Removing 0 doesn't change the value,so remove it from the expression z2=10Take the root of both sides of the equation and remember to use both positive and negative roots z=±10Separate the equation into 2 possible cases z=10z=−10Solution z1=−10,z2=10Alternative Form z1≈−3.162278,z2≈3.162278 Show Solution
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