Question Simplify the expression 1−8x+28x2−56x3+70x4−56x5+28x6−8x7+x8 Evaluate (1−x)8Solution 1−8x+28x2−56x3+70x4−56x5+28x6−8x7+x8 Show Solution Find the roots x=1 Evaluate (1−x)8To find the roots of the expression,set the expression equal to 0 (1−x)8=0The only way a power can be 0 is when the base equals 0 1−x=0Move the constant to the right-hand side and change its sign −x=0−1Removing 0 doesn't change the value,so remove it from the expression −x=−1Solution x=1 Show Solution
Algebra
Calculus
Trigonometry
Matrix Algebra Calculus Trigonometry Matrix