How to solve 12+x3+x24 where x=12? Please show steps. Algebra Expressions, Equations, and Functions Variable Expressions 1 Answer Alan P. Sep 8, 2015 12+x3+x24 with x=12 XXXXXXXXXXXXXXXX=3548 Explanation: Given 12+x3+x24 with x=12 12+123+(12)24 =12+123+144 =12+12⋅13+(14)⋅14 =12+16+116 least common multiple is 3×16=48 12+16+164 =2448+848+3548 =3548 Answer link Related questions How do you write the variable expression for: a quotient of 2 and the sum of a number and 3 ? What are variables? What are variable expressions? How do you write variable expressions? How do you evaluate variable expressions? How do you simplify the expression 3x−x+4? How do you write a quotient of a number and 6 as an expression? How do you evaluate the expression 2x+1 for x=1? How do you write a product of a number and 2 as an expression? How do you write 5 less than 2 times a number as a variable expression? See all questions in Variable Expressions Impact of this question 1862 views around the world You can reuse this answer Creative Commons License