Question Factor the expression (5−x)(25+5x+x2) Evaluate 125−x3Rewrite the expression in exponential form 53−x3Use a3−b3=(a−b)(a2+ab+b2) to factor the expression (5−x)(52+5x+x2)Solution (5−x)(25+5x+x2) Show Solution Find the roots x=5 Evaluate 125−x3To find the roots of the expression,set the expression equal to 0 125−x3=0Move the constant to the right-hand side and change its sign −x3=0−125Removing 0 doesn't change the value,so remove it from the expression −x3=−125Change the signs on both sides of the equation x3=125Take the 3-th root on both sides of the equation 3x3=3125Calculate x=3125Solution More Steps Evaluate 3125Write the number in exponential form with the base of 5 353Reduce the index of the radical and exponent with 3 5 x=5 Show Solution