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Solve the equation.


√(12-5x) = 5x

a. 3/5
b. -4/5
c. 3/5, 4/5
d. -3/5

2 Answers

5 votes
hello here is a solution : 
Solve the equation. √(12-5x) = 5x a. 3/5 b. -4/5 c. 3/5, 4/5 d. -3/5-example-1
User Francesco Meli
by
7.0k points
5 votes
(12-5x)^(1/2)=5x

12-5x=25x^2

25x^2+5x-12=0

25x^2+20x-15x-12=0

5x(5x+4)-3(5x+4)=0

(5x-3)(5x+4)=0

x= -4/5 and 3/5
User Ricardo Yanez
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6.9k points