Answer:
X=3, or X=-3 But the positive answer is X=3
Step-by-step explanation:
Rewrite the equation 5x^2+2=47
Subtract 2 from each side -----> 5x^2+2-2=47-2
Simplify ---------> 5x^2=45
divide each side by 5 -----> 5x^2/5=45/5
Simplify x^2=9
Divide each side by using square root method --> Sqrt(9) - sqrt(9)
Now simplify to get X=3, or X=-3
