Question

Sendo A = x² - 8x + 16 e B = x - 4, qual o resultado de A : B ? *​

Answer 1

• A = x² - 8x + 16

delta = b² - 4.a.c

delta = (-8)² - 4.1.16

delta = 64 - 64 = 0

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

x = ( - (-8) +- raiz de 0 ) / 2.1

x = ( 8 +- 0 ) / 2 = 8 / 2 = 4

• B = x - 4 = 4 - 4 = 0

• A : B = 4 / 0 = 0