rassieremily
rassieremily rassieremily
  • 01-05-2018
  • Mathematics
contestada

Solve x2 − 7x + 12 = 0.


a. x = −3, x = −4
b .x = 3, x = 4
c. x = 2, x = 6
d. x = −2, x = −6

Respuesta :

jimthompson5910 jimthompson5910
  • 01-05-2018
Factor and use the zero product property. To factor, find two numbers that multiply to +12 and add to -7. These two numbers are -4 and -3

So,
x^2 - 7x + 12 = 0
(x-4)(x-3) = 0
x-4 = 0 or x-3 = 0
x = 4 or x = 3

Answer is choice B
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Dyamond1224
Dyamond1224 Dyamond1224
  • 01-05-2018
B. X=3, x=4. have a nice day
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