Question Simplify the expression Solution x2−x−2 Evaluate (x+1)(x−2)Apply the distributive property x×x−x×2+1×x−1×2Multiply the terms x2−x×2+1×x−1×2Use the commutative property to reorder the terms x2−2x+1×x−1×2Any expression multiplied by 1 remains the same x2−2x+x−1×2Any expression multiplied by 1 remains the same x2−2x+x−2Solution More Steps Evaluate −2x+xCollect like terms by calculating the sum or difference of their coefficients (−2+1)xAdd the numbers −x x2−x−2 Show Solution Find the roots Find the roots of the algebra expression x1=−1,x2=2 Evaluate (x+1)(x−2)To find the roots of the expression,set the expression equal to 0 (x+1)(x−2)=0Separate the equation into 2 possible cases x+1=0x−2=0Solve the equation More Steps Evaluate x+1=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=−1 x=−1x−2=0Solve the equation More Steps Evaluate x−2=0Move the constant to the right-hand side and change its sign x=0+2Removing 0 doesn't change the value,so remove it from the expression x=2 x=−1x=2Solution x1=−1,x2=2 Show Solution