Question Solve the quadratic equation Solve using square roots Solve by factoring Solve using the quadratic formula Load more n1=−1,n2=1 Evaluate 168=n×168nCancel out the common factor 8 21=n×168nSimplify More Steps Evaluate n×168nCancel out the common factor 8 n×21nMultiply the terms n2×21Use the commutative property to reorder the terms 21n2 21=21n2Swap the sides 21n2=21Divide both sides 2121n2=2121Divide the numbers n2=1Take the root of both sides of the equation and remember to use both positive and negative roots n=±1Simplify the expression n=±1Separate the equation into 2 possible cases n=1n=−1Solution n1=−1,n2=1 Show Solution Graph