Solve 5^2 - 8 * 2 +10
According to order of operations (PEMDAS), you're going to take the square root of 5 first, which is 25, then find the product of 8 and 2, which comes out to 16. Subtract 16 from 25, add 10 and the answer should come out to 19.
Solve for x: 3x + 10 = 91
According to order of operations, you take away 10 from both sides of the equation then divide by 3, so the answer should be x = 27. To check this answer plug in 27 for x and both sides of the equation should be equal.
Simplify (12n^2 + 15n) / 3n
Since both the numerator and denominator is divisible by 3n, the simplified answer should be 4n + 5.