Question Simplify the expression x3+9x2+27x+27 Evaluate (x+3)3Use (a+b)3=a3+3a2b+3ab2+b3 to expand the expression x3+3x2×3+3x×32+33Solution x3+9x2+27x+27 Show Solution Find the roots x=−3 Evaluate (x+3)3To find the roots of the expression,set the expression equal to 0 (x+3)3=0The only way a power can be 0 is when the base equals 0 x+3=0Move the constant to the right-hand side and change its sign x=0−3Solution x=−3 Show Solution
Algebra
Calculus
Trigonometry
Matrix Algebra Calculus Trigonometry Matrix