to do questions like these, you have to follow "PEMDAS," also known as Order of Operations.
For example on the first problem, there is no parenthesis (P), but there are exponents (E). So you'd solve that first. Then you would multiply (M). Then there is no division (D), so you'd move on and add (A) and subtract (S). That's what PEMDAS is.
5+3+5^{2}×5-2
5+3+25×5-2
5+3+125-2
133-2
answer: 131
The second problem is different though; there is parenthesis (P). So that means you will start by solving the problems in the parenthesis. Then you will follow PEMDAS just like you did in the last problem. So that means you'd solve the exponent (E), multiply (M), and finally, you'd add (A). (In that exact order).
(5+3)+5^{2}×(5-2)
8+5^{2}×3
8+25×3
8+75
answer: 83
