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AHMIRBROWN123
31.08.2019 •
Mathematics
The cost of one pen is given by the expression (2x^2 - x - 10)/(x^2 - x -6).
the cost of one pen is undefined when x =
the choices:
a. 3 and -2
b. -3 and 2
c. 3
Solved
Show answers
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Ответ:
A.3 and -2
Step-by-step explanation:
The cost of one pen is undefined when..;
(2x^2 - x - 10)/(x^2 - x - 6) = 1/0then interchange..by putting the denominator as the numerator and numerator as the denominator on both sides of the equation,which then would give us...;
(x^2 - x - 6)/(2x^2 - x - 10) = 0/1
Which then if simplified it would give us..;
;(x^2 - x - 6) = 0in which we simpilify the quadratic expression,
;(x - 3)(x + 2) = 0
Hence the choices of x...are then solved by;
(x - 3) = 0our first choice...x = 3,
(x + 2) = 0our second choice...x = -2
Ответ:
I would answer if it has more points but I don want to waste my time on a 5 point question sorry
Step-by-step explanation: