ok so assumin by 2x3 you mean 2x^3 or 2 times x cubed
PEMDAS
parenthasees
exponentes
multiply
divide
add
subtract
exponents
we have
2(3)^3+3(4)^2-17
exonents
3^3=27
4^2=16
now we have
2(27)+3(16)-17
distribute (multply)
2 tiems 27=54
3 times 16=48
now we have
54+48-17
add/subtract
85
answer is 85
