Question Factor the expression 21(x6−24) Evaluate 21x6−12Solution 21(x6−24) Show Solution Find the roots x1=−624,x2=624Alternative Form x1≈−1.698381,x2≈1.698381 Evaluate 21x6−12To find the roots of the expression,set the expression equal to 0 21x6−12=0Move the constant to the right-hand side and change its sign 21x6=0+12Removing 0 doesn't change the value,so remove it from the expression 21x6=12Multiply by the reciprocal 21x6×2=12×2Multiply x6=12×2Multiply x6=24Take the root of both sides of the equation and remember to use both positive and negative roots x=±624Separate the equation into 2 possible cases x=624x=−624Solution x1=−624,x2=624Alternative Form x1≈−1.698381,x2≈1.698381 Show Solution
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