Question

Resultado de (x+88)^2= -169?​

Answer 1

(x + 88)^2 = (x + 88) . (x + 88) = x^2 + 176x + 7 744

x^2 + 176x + 7 744 = - 169

x^2 + 176x + 7 744 + 169 = 0

x^2 + 176x + 7575

delta = b^2 - 4.a.c

delta = 176^2 - 4.(1).(7575)

delta = 30 976 - 30 300

delta = 676

x = (- b +- raiz de delta ) / 2.a

x = ( - 176 +- raiz de 676 ) / 2.1

x = ( - 176 +- 26) / 2

x' = ( - 176 + 26 ) / 2

x' = - 150 / 2

x' = - 75

x" = ( - 176 - 26 ) / 2

x" = - 202 / 2

x" = - 101