Question

H = -3.9t*2 + 15.6t

Answer 1

H = 7.8 t + 0

Explanation:

H = -3.9 t×2 + 15.6 t

Result

H = 7.8 t

Alternate form

H - 7.8 t = 0

Alternate form assuming H and t are real

H = 7.8 t + 0

i hope this helps