Question

5t²+12+7 what is the answer​

Answer 1

Step-by-step explanation:

I did not understand what do you want to say , write again

Answer 2

$5 {t}^{2} + 12 + 7 = 5 {t}^{2} + 19 \\ 5 {t}^{2} = - 19 \\ {t}^{2} = - \frac{19}{5 } \\ t = \sqrt{ \frac{ - 19}{5} }$

I think u need to find the value it 't',so I hope it will helps you