Question Find the roots Find the roots of the algebra expression x1≈−1.222974,x2≈1.222974 Evaluate x2−13x6+42To find the roots of the expression,set the expression equal to 0 x2−13x6+42=0Solve the equation using substitution t=x2 t−13t3+42=0Calculate t≈1.495665Substitute back x2≈1.495665Take the root of both sides of the equation and remember to use both positive and negative roots x=±1.495665Simplify the expression x=±1.222974Separate the equation into 2 possible cases x≈1.222974x≈−1.222974Solution x1≈−1.222974,x2≈1.222974 Show Solution
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