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anonymous
 one year ago
Given that h(x) = 4x+5 and (hj)(x) = x2, find j(x).
anonymous
 one year ago
Given that h(x) = 4x+5 and (hj)(x) = x2, find j(x).

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I think I have an idea, but I don't think it is correct

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.3h(x) = 4x+5 and (hj)(x) = x2, find j(x) (hj)(x) = h(x)  j(x) x  2 = 4x + 5  j(x) Solve for j(x)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok. Would that be 7/3 ?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.3x  2 = 4x + 5  j(x) Add j(x) to both sides: j(x) + x  2 = 4x + 5 Subtract x from both sides & add 2 to both sides: j(x) = 3x + 7

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh ok.. And then once I plug them in together I should get x2 right?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.3Let's check. We must have h(x)  j(x) = x  2 h(x) = 4x + 5 j(x) = 3x + 7 (hj)(x) = h(x)  j(x) = 4x + 5  (3x + 7) = 4x + 5  3x  7 = x  2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you so much! I thought it was something along the likes of that, but I just wanted to double check.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.3Yes, but the answer is just j(x) = x  2 I just plugged it in to check if j(x) = x  2 was the correct answer.
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