Question

f(x)=x2-2x+7,find x for which f(x) = f(x-1) +5

Answer 1

Answer:

Step-by-step explanation: Given f(x)=x^2 - 2x + 7

f(x) = f(x-1) + 5

x^2 - 2x + 7 = (x - 1)^2 - 2(x - 1) + 7 + 5

x^2 - 2x + 7 = x^2 + 1 - 2x - 2x + 2 + 12

2x = 8

x = 4

Answer 2

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