angiecannon
angiecannon
27-02-2017
Mathematics
contestada
Can anyone help me with this?
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9tlanier1
9tlanier1
27-02-2017
yes just restate your question
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Аноним
Аноним
27-02-2017
(3x - 1)(3 -x)+x^2 + 19
a)
(3x - 1)(3 -x)+x^2 + 19
=9x - 3x^2 - 3 + x + x^2 + 19
= -2x^2 + 10x + 16
b) evaluate at x = 2
-2x^2 + 10x + 16
= -2 (2^2) + 10(2) + 16
= -8 + 20 + 16
= 28
c)
from part (a)
-2x^2 + 10x + 16
= -2 (x^2 - 5x - 8) (complete factor)
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