allieballey0727
allieballey0727 allieballey0727
  • 07-11-2018
  • Mathematics
contestada

find the illegal values of b in the fraction.

find the illegal values of b in the fraction class=

Respuesta :

KhaRNate
KhaRNate KhaRNate
  • 07-11-2018
Denominator can't be zero, so:

b^2 - 2b - 8 = 0
b^2 - 4b + 2b - 8 = 0
b(b-4) + 2(b-4) = 0
(b-4) (b+2) = 0

b-4 = 0
b = 4

b+2 = 0
b = -2

b can't be equal to 4 and -2

Answer: D
Answer Link

Otras preguntas

A clause that tells how, when, where, or to what extent something was done is a(n) _____.
Hoy, nosotros ________ a la fiesta de Sergio. A. iríamos B. íbamos C. vamos D. fuimos please answer qounfused
Which of the following fractions is equivalent to 0.45? 4/5 2/5 9/20 9/200
order these numbers from least to greatest. 1725 , −5.87 , −33 , 0.6
Kenya exchanges $200 for euros (€). Suppose the conversion rate is €1 = $1.321. How many euros should Kenya receive?
a square that is 10cm on a side contains a circle that touches the inside the square?
all of the following are condidered parts of speech expect?
use number line to draw 245-137
The product of 8/15, 6/5, and 1/3 is
What is the yearly amount of $3,000 with 8% compounded annually for a year