Question

УПРОСТИТЕ ВЫРАЖЕНИЕ (t-5)²+4(10-t)

Answer 1

t^2-2*t*5+5^2+40-4t=t^2-10t+25+40-4t=t^2-14t+65. ^- это степень.

Answer 2

(t-5)`2+4(10-t)=t`2-10t+25+40-4t=t`2-14t+65