How do you simplify #5k+3k^3+7k+9k^3#?

Related questions

• What is an example of an expression with one or more variables?
• How do you write expressions with one or more variables?
• How do you evaluate expressions when you have more than one variables?
• How do you evaluate the expression #3a+2b# for #a=1# and #b=-2#?
• How do you find the area of a triangle whose base is 2 inches and height is 4.5 inches?
• How do you find the volume of a sphere whose radius is 2?
• How do you evaluate the expression #2(x-y)# for #x=1# and #y=-2#?
• How do you evaluate #x^2+2x-1# when #x=2#?
• What is the value of #(3x+8y)/(x-2y)# if #x/(2y)=2#?
• How do you simplify #6-4t-4#?