Solve the equation below.
2 answers:
Answer:
Option C is correct.
Step-by-step explanation:
We need to solve the equation below and find value of x
Cross multiply
x(x+4)=6x
x^2+4x=6x
x^2+4x-6x=0
x^2-2x=0
Taking x common
x(x-2)=0
x=0 and x-2 =0
x=0 and x= 2
Verify solutions
putting x=0
x+4/6(0) = 1/0
the solution is undefined.
Putting x = -2
2+4/6(2) = 1/2
2+4/12 = 1/2
6/12=1/2
1/2=1/2
the solution is defined.
The solutions is x=2 as for x=0 the solution is undefined.
So, Option C is correct.
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Answer:
w=12
l=20
Step-by-step explanation:
The area can be found using the following equation:
Given the information provided, we are also told the following:
Therefore, we can plug in our length and our area:
We can solve by using the quadratic formula.
w=12, so w+8=20.