Question Simplify the expression n4−7n Evaluate n4−n×7Solution n4−7n Show Solution Factor the expression n(n3−7) Evaluate n4−n×7Use the commutative property to reorder the terms n4−7nRewrite the expression n×n3−n×7Solution n(n3−7) Show Solution Find the roots n1=0,n2=37Alternative Form n1=0,n2≈1.912931 Evaluate n4−n×7To find the roots of the expression,set the expression equal to 0 n4−n×7=0Use the commutative property to reorder the terms n4−7n=0Factor the expression n(n3−7)=0Separate the equation into 2 possible cases n=0n3−7=0Solve the equation More Steps Evaluate n3−7=0Move the constant to the right-hand side and change its sign n3=0+7Removing 0 doesn't change the value,so remove it from the expression n3=7Take the 3-th root on both sides of the equation 3n3=37Calculate n=37 n=0n=37Solution n1=0,n2=37Alternative Form n1=0,n2≈1.912931 Show Solution