Question

-16 + 4x^2 = 0
Please help. If possible can I get a step by step ?

Answer 1

Step-by-step explanation:

$- 16 + 4 {x}^{2} = 0 \\ 4 {x}^{2} = 16 \\ {x}^{2} = \frac{16}{4} \\ {x}^{2} = 4 \\ x = \sqrt{4 } \\ x = 2$