Question Simplify the expression 16m2−24m+9 Evaluate (4m−3)2Use (a−b)2=a2−2ab+b2 to expand the expression (4m)2−2×4m×3+32Solution 16m2−24m+9 Show Solution Find the roots m=43Alternative Form m=0.75 Evaluate (4m−3)2To find the roots of the expression,set the expression equal to 0 (4m−3)2=0The only way a power can be 0 is when the base equals 0 4m−3=0Move the constant to the right-hand side and change its sign 4m=0+3Removing 0 doesn't change the value,so remove it from the expression 4m=3Divide both sides 44m=43Solution m=43Alternative Form m=0.75 Show Solution
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