Question

3(х+4)в квадрате=10х+32.Найдите корни уравнения

Answer 1

3(х-4)^2=10x+32

3(x^2+8x+16)=10x+32

3x^2+24x+48-10x-32=0

3x^2+14x+16=0

D=196-192=4

x1=-14-2/6=-16/6

x2=-14+2/6=-2