Question Simplify the expression y2−19841221 Evaluate y×y−19841221Solution y2−19841221 Show Solution Find the roots y1=−19841221,y2=19841221Alternative Form y1≈−4454.348549,y2≈4454.348549 Evaluate y×y−19841221To find the roots of the expression,set the expression equal to 0 y×y−19841221=0Multiply the terms y2−19841221=0Move the constant to the right-hand side and change its sign y2=0+19841221Removing 0 doesn't change the value,so remove it from the expression y2=19841221Take the root of both sides of the equation and remember to use both positive and negative roots y=±19841221Separate the equation into 2 possible cases y=19841221y=−19841221Solution y1=−19841221,y2=19841221Alternative Form y1≈−4454.348549,y2≈4454.348549 Show Solution
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