You should use your calculator for such simple sums. It is far quicker and involves fewer key depressions than posting the question on WA. But since you seem unable to carry out even this simple task, the answer is 27.
54 + -90x
This is non-linear
7 + ( 9 x ( 3 - 1 ) ) = 25
9x3 is also 9+9+9. 9x3 = 27
27
To find the sum of something means to add. Example: 9X3=27 The sum of 9x3 is 27.
9x6=54! P.S. Here is a trick, hold uot both of you're hands and if you want to know 9x3, put down your third finger and anything in front of that finger is then tens and the ones behind it are the ones so using the trick 9x3=7 (ONLY WORKS FOR NINE!)
If that's -9x^3 - 3x^2 + 3x + 1, that factors to (1 - 3x^2)(1 + 3x)
9x3=27
22
yes
= 53 9x3 + 9x2 + 5x1+ 3x1 27 + 18 + 5 + 3