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vesna_86 [32]
3 years ago
11

HELPPPP SOMEONE I need help

Mathematics
2 answers:
ch4aika [34]3 years ago
5 0

Answer:

see explanation

Step-by-step explanation:

(a)

To evaluate f(5) substitute x = 5 into f(x), that is

f(5) = 2(5) - 1 = 10 - 1 = 9

(b)

To evaluate g(x - 2) substitute x = x - 2 into g(x), that is

g(x - 2)

= (x - 2)² + x - 2 + 1 ← expand (x - 2)² using FOIL

= x² - 4x + 4 + x - 2 + 1 ← collect like terms

= x² - 3x + 3

omeli [17]3 years ago
3 0
Hey it’s me again lol.

Part a)

f(5) is inserting 5 into f(x) where x=5

(2•5) -1 = 9

Part B)

g(x-2) is inserting x-2 into g(x) where x =x-2

(x-2)^2 + x-2 + 1 = x^2 -4x +4 + x - 2 + 1

= x^2 -3x + 5


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