Question Factor the expression 2(21x−4) Evaluate 42x−8Solution 2(21x−4) Show Solution Find the roots x=214Alternative Form x=0.1˙90476˙ Evaluate 42x−8To find the roots of the expression,set the expression equal to 0 42x−8=0Move the constant to the right-hand side and change its sign 42x=0+8Removing 0 doesn't change the value,so remove it from the expression 42x=8Divide both sides 4242x=428Divide the numbers x=428Solution x=214Alternative Form x=0.1˙90476˙ Show Solution
Algebra
Calculus
Trigonometry
Matrix Algebra Calculus Trigonometry Matrix