Question

разложите на множители: 4t^2+28t+49

Answer 1

$4t^{2}+28t+49=4t^{2}+(14t+14t)+49=(4t^{2}+14t)+(14t+49)=4t(t+3,5)+14(t+3,5)=(t+3,5)(4t+14)$