Question Simplify the expression 25x2−60x+36 Evaluate (5x−6)2Use (a−b)2=a2−2ab+b2 to expand the expression (5x)2−2×5x×6+62Solution 25x2−60x+36 Show Solution Find the roots x=56Alternative Form x=1.2 Evaluate (5x−6)2To find the roots of the expression,set the expression equal to 0 (5x−6)2=0The only way a power can be 0 is when the base equals 0 5x−6=0Move the constant to the right-hand side and change its sign 5x=0+6Removing 0 doesn't change the value,so remove it from the expression 5x=6Divide both sides 55x=56Solution x=56Alternative Form x=1.2 Show Solution
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