Question

8.6 solve radical equations (homework)
score: 3/16 answered: 3/16
question 4
find all real solutions:
\\(\sqrt{4 - 7c}=2\\)
\\(c =\\) . (if no solution exists, enter dne)

Explanation:

Step1: Square both sides

$(\sqrt{4 - 7c})^2=2^2$
$4 - 7c = 4$

Step2: Isolate the variable term

Subtract 4 from both sides:
$4-4 - 7c=4 - 4$
$-7c = 0$

Step3: Solve for c

Divide both sides by -7:
$c=\frac{0}{-7}$
$c = 0$

Answer:

$0$