问题 Factor the expression 2n2(n−4) Evaluate 2n3−8n2Rewrite the expression 2n2×n−2n2×4解题方案 2n2(n−4) 显示解题方案 Find the roots n1=0,n2=4 Evaluate 2n3−8n2To find the roots of the expression,set the expression equal to 0 2n3−8n2=0Factor the expression 2n2(n−4)=0Divide both sides n2(n−4)=0Separate the equation into 2 possible cases n2=0n−4=0The only way a power can be 0 is when the base equals 0 n=0n−4=0Solve the equation 更多步骤 Evaluate n−4=0Move the constant to the right-hand side and change its sign n=0+4Removing 0 doesn't change the value,so remove it from the expression n=4 n=0n=4解题方案 n1=0,n2=4 显示解题方案
