Question Simplify the expression x3+6x2+12x+8 Evaluate (x+2)3Use (a+b)3=a3+3a2b+3ab2+b3 to expand the expression x3+3x2×2+3x×22+23Solution x3+6x2+12x+8 Show Solution Find the roots x=−2 Evaluate (x+2)3To find the roots of the expression,set the expression equal to 0 (x+2)3=0The only way a power can be 0 is when the base equals 0 x+2=0Move the constant to the right-hand side and change its sign x=0−2Solution x=−2 Show Solution
Algebra
Calculus
Trigonometry
Matrix Algebra Calculus Trigonometry Matrix