if x+1.5 and y=2,what is (6x+6y)x3 equals to

Question

i don't understand how to do that

Answer 1

I think you mean "x=1.5" not "x+1.5".

(a) and (b) are two different interpretations of the question.

(a) The given expression (6x+6y)x³ can be written:

6(x+y)x³=6(1.5+2)1.5³=6×3.5×3.375=70.875.

(b) The given expression (6x+6y)×3 can be written:

6(x+y)x³=6(1.5+2)×3=6×3.5×3=63.