Question Simplify the expression 256−32x+x2 Evaluate (16−x)2Use (a−b)2=a2−2ab+b2 to expand the expression 162−2×16x+x2Solution 256−32x+x2 Show Solution Find the roots x=16 Evaluate (16−x)2To find the roots of the expression,set the expression equal to 0 (16−x)2=0The only way a power can be 0 is when the base equals 0 16−x=0Move the constant to the right-hand side and change its sign −x=0−16Removing 0 doesn't change the value,so remove it from the expression −x=−16Solution x=16 Show Solution
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