53-49=4
4 times 12=48. the unknown number is 48
Answer:
10
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
2x³y³ + 3xy - 3x³y³ + x²y - xy + 2x²y
x = -1
y = 2
<u>Step 2: Evaluate</u>
- Substitute: 2(-1)³(2)³ + 3(-1)(2) - 3(-1)³(2)³ + (-1)²(2) - (-1)(2) + 2(-1)²(2)
- Exponents: 2(-1)(8) + 3(-1)(2) - 3(-1)(8) + 1(2) - (-1)(2) + 2(1)(2)
- Multiply: -16 - 6 + 24 + 2 - (-2) + 4
- Simplify: -16 - 6 + 24 + 2 + 2 + 4
- Subtract: -22 + 24 + 2 + 2 + 4
- Add: 2 + 2 + 2 + 4
- Add: 4 + 2 + 4
- Add: 6 + 4
- Add: 10
Because 13 is a prime number, we cannot use the AC method to simplify.
We can instead use the quadratic formula.
11 +/- √121 - 52 / 2
11 +/- √69 / 2
11 +/- 8.3 / 2
(11 + 8.3)/2 = 9.65
(11 - 8.3)/2 = 1.35
<h3>The roots of the polynomial are 9.65 and 1.35.</h3>
-28.403 i believe that’s right but idk
1225 is a perfect square. the simplest factored form of 1225, is 35.
