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icang [17]
3 years ago
9

F(x)=x^2+3x ... find f(2-a)

Mathematics
2 answers:
olga2289 [7]3 years ago
7 0
(2-a)^2 + 3(2-a)




A^2 -2a + 4 + 6 -3a



A^2 -5a +10
igor_vitrenko [27]3 years ago
5 0

f(x) = x^2 + 3x

Replace x with (2 - a).

f(2 - a) = (2 - a)^2 + 3(2 - a)

f(2 - a) = 4 - 4a + a^2 + 6 - 3a

f(2 - a) = a^2 - 7a + 10

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