Answer:
They completed 13, 3 credit classes
Step-by-step explanation:
1. Make 2 formulas. In this case: x+y=18
and 3x+4y=59
2. Then multiply x+y=18 by 3 and subtract the two equations.
Find y which is 5 and input into the equations. Then find your answer.
34
9 + 25
Step 1: Define expression
a² + b²
a = 3
b = 5
Step 2: Substitute
3² + 5²
Step 3: Evaluate
(x-3) (x+5) => x*x+5x-3x-15
=> x*x+2x-15
㏒e(x)= 5
