Please answer this correctly without making mistakes I want ace expert and genius people to answer this correctly without making mistakes

Answer:
it's 36
-4 and 4 cancel out and 6 squared is 36
Answer:
[tex]rt + s^{2} =[/tex] 20
Step-by-step explanation:
r = -4
s = 6
t = 4
equation:
⇒ [tex]rt + s^{2} =[/tex]
substitute the right numbers for the letters:
⇒ [tex](-4) (4) + 6^{2}[/tex]
figure out what (-4) (4) and [tex]6^{2}[/tex] is:
⇒ (-4) (4) = -16
⇒ [tex]6^{2} = 36[/tex]
rewrite the equation:
⇒ -16 + 36
⇒ 20