Question Simplify the expression 625−50x+x2 Evaluate (25−x)2Use (a−b)2=a2−2ab+b2 to expand the expression 252−2×25x+x2Solution 625−50x+x2 Show Solution Find the roots x=25 Evaluate (25−x)2To find the roots of the expression,set the expression equal to 0 (25−x)2=0The only way a power can be 0 is when the base equals 0 25−x=0Move the constant to the right-hand side and change its sign −x=0−25Removing 0 doesn't change the value,so remove it from the expression −x=−25Solution x=25 Show Solution
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