Question Simplify the expression x2−64 Evaluate (x+8)(x−8)Use (a+b)(a−b)=a2−b2 to simplify the product x2−82Solution x2−64 Show Solution Find the roots x1=−8,x2=8 Evaluate (x+8)(x−8)To find the roots of the expression,set the expression equal to 0 (x+8)(x−8)=0Separate the equation into 2 possible cases x+8=0x−8=0Solve the equation More Steps Evaluate x+8=0Move the constant to the right-hand side and change its sign x=0−8Removing 0 doesn't change the value,so remove it from the expression x=−8 x=−8x−8=0Solve the equation More Steps Evaluate x−8=0Move the constant to the right-hand side and change its sign x=0+8Removing 0 doesn't change the value,so remove it from the expression x=8 x=−8x=8Solution x1=−8,x2=8 Show Solution
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