Question Factor the expression (x−8)(x+8) Evaluate x2−64Rewrite the expression in exponential form x2−82Solution (x−8)(x+8) Show Solution Find the roots x1=−8,x2=8 Evaluate x2−64To find the roots of the expression,set the expression equal to 0 x2−64=0Move the constant to the right-hand side and change its sign x2=0+64Removing 0 doesn't change the value,so remove it from the expression x2=64Take the root of both sides of the equation and remember to use both positive and negative roots x=±64Simplify the expression More Steps Evaluate 64Write the number in exponential form with the base of 8 82Reduce the index of the radical and exponent with 2 8 x=±8Separate the equation into 2 possible cases x=8x=−8Solution x1=−8,x2=8 Show Solution
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