maths puzzle

Q: 7+2+5=????
A: 7+2+5=1435

First Two Digit Pattern:
-Multiply the first number by the second number, hence 7x2=14.

Second Two Digit Pattern:
-Multiply the first number by the last number, hence 7x5=35.

Third & Fourth Digit Pattern(s):
-None, there is no shared mathematical pattern, hence they are "randomly" populated are conjoined to the conjoined results of the first two patterns.

(*note, this conclusion was hinted by the four question marks)
(*note, but is it not "math's puzzle" that "random" is not "random", yet it's just the lack of understanding of the "why" behind a phenomena?)

phenomenon (singular); phenomena (plural)