Question Simplify the expression 2025−90x+x2 Evaluate (45−x)2Use (a−b)2=a2−2ab+b2 to expand the expression 452−2×45x+x2Solution 2025−90x+x2 Show Solution Find the roots x=45 Evaluate (45−x)2To find the roots of the expression,set the expression equal to 0 (45−x)2=0The only way a power can be 0 is when the base equals 0 45−x=0Move the constant to the right-hand side and change its sign −x=0−45Removing 0 doesn't change the value,so remove it from the expression −x=−45Solution x=45 Show Solution
Algebra
Calculus
Trigonometry
Matrix Algebra Calculus Trigonometry Matrix