Question Factor the expression 21x(2x−1) Evaluate x2−21xRewrite the expression 21x×2x−21xSolution 21x(2x−1) Show Solution Find the roots x1=0,x2=21Alternative Form x1=0,x2=0.5 Evaluate x2−21xTo find the roots of the expression,set the expression equal to 0 x2−21x=0Factor the expression More Steps Evaluate x2−21xRewrite the expression 21x×2x−21xFactor out 21x from the expression 21x(2x−1) 21x(2x−1)=0When the product of factors equals 0,at least one factor is 0 21x=02x−1=0Solve the equation for x x=02x−1=0Solve the equation for x More Steps Evaluate 2x−1=0Move the constant to the right-hand side and change its sign 2x=0+1Removing 0 doesn't change the value,so remove it from the expression 2x=1Divide both sides 22x=21Divide the numbers x=21 x=0x=21Solution x1=0,x2=21Alternative Form x1=0,x2=0.5 Show Solution
Algebra
Calculus
Trigonometry
Matrix Algebra Calculus Trigonometry Matrix