Question Simplify the expression k2−7k Evaluate k2−k×7Solution k2−7k Show Solution Factor the expression k(k−7) Evaluate k2−k×7Use the commutative property to reorder the terms k2−7kRewrite the expression k×k−k×7Solution k(k−7) Show Solution Find the roots k1=0,k2=7 Evaluate k2−k×7To find the roots of the expression,set the expression equal to 0 k2−k×7=0Use the commutative property to reorder the terms k2−7k=0Factor the expression More Steps Evaluate k2−7kRewrite the expression k×k−k×7Factor out k from the expression k(k−7) k(k−7)=0When the product of factors equals 0,at least one factor is 0 k=0k−7=0Solve the equation for k More Steps Evaluate k−7=0Move the constant to the right-hand side and change its sign k=0+7Removing 0 doesn't change the value,so remove it from the expression k=7 k=0k=7Solution k1=0,k2=7 Show Solution