First, we can start by expanding (a+b)²
a²+2ab+b²
We can then use the commutative property to separate this into:
a²+b² + 2ab
Since we are given the values for <span>a²+b² and ab, we can</span> plug in these values into the equation:
16 + (2)(8)
16+16
32
Therefore, the value of (a+b)² is 32
Answer:
9765625
Step-by-step explanation:
So we have the system of equations:
equation (1)
equation (2)
To use substitution, we are going to solve for one variable in one of our equations, and then we are going to replace that value in the other equation:
Solving for
in equation (2):
equation (3)
Replacing equation (3) in equation (1):
equation (4)
Replacing equation (4) in equation (3):
We can conclude that the solution of our system of equations is <span>
(7/5, 21/10)</span>
Answer:
x = 23 degress
Step-by-step explanation:
(x + 2) + 65 = 90
x + 2 = 25
<u>x = 23 degress</u>
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