Question Simplify the expression 25x2−30x+9 Evaluate (5x−3)(5x−3)Multiply the terms (5x−3)2Use (a−b)2=a2−2ab+b2 to expand the expression (5x)2−2×5x×3+32Solution 25x2−30x+9 Show Solution Find the roots x=53Alternative Form x=0.6 Evaluate (5x−3)(5x−3)To find the roots of the expression,set the expression equal to 0 (5x−3)(5x−3)=0Multiply the terms (5x−3)2=0The only way a power can be 0 is when the base equals 0 5x−3=0Move the constant to the right-hand side and change its sign 5x=0+3Removing 0 doesn't change the value,so remove it from the expression 5x=3Divide both sides 55x=53Solution x=53Alternative Form x=0.6 Show Solution
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