Question Simplify the expression 1+3x+3x2+x3 Evaluate (1+x)3Use (a+b)3=a3+3a2b+3ab2+b3 to expand the expression 13+3×12×x+3×1×x2+x3Solution 1+3x+3x2+x3 Show Solution Find the roots x=−1 Evaluate (1+x)3To find the roots of the expression,set the expression equal to 0 (1+x)3=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=0−1Solution x=−1 Show Solution
Algebra
Calculus
Trigonometry
Matrix Algebra Calculus Trigonometry Matrix