How do you evaluate the expression #x^4+x# if x=2? Algebra Expressions, Equations, and Functions PEMDAS 1 Answer Wataru Nov 5, 2014 By replacing #x# by 2, #(2)^4+(2)=16+2=18# I hope that this was helpful. Answer link Related questions What is PEMDAS? How do you use PEMDAS? How do you use order of operations to simplify #3(7-2)-8#? What are common mistakes students make with PEMDAS? How do you evaluate the expression #5[8+(3-1)]-2#? How do you simplify the expression #4(30-(3+1)^2)#? Is it okay to add first before subtracting in #4-6+3#? How do you simplify #(-3)^2+12*5#? How do you simplify #(4-2)^3-4*8+21div3#? How do you simplify #6รท2(1+2)#? See all questions in PEMDAS Impact of this question 8284 views around the world You can reuse this answer Creative Commons License