Answer:
12 units
Step-by-step explanation:
A=hbb/2=6·4/2= 12
Answer:
x = 2 and x = -2
Step-by-step explanation:
The easiest way is to guess. We know that you can't have a square root of a negative number. This constrains x between negative infinity to 2. Testing 2 and -2, we see that it satisfy the equation.
The more systematic approach is shown below


x= -2, 2
Answer: xy
Step-by-step explanation:
Combine like terms to get 9xy-8xy
Then subtract the coefficient to get 1xy
Your finally answer is xy because you don’t need to include the coefficient of 1
4x + 8 +3x +12 +6x = perimeter
13x + 20 = perimeter