anonymous
  • anonymous
Help in Algebra 2 having trouble Factoring Let f(x) = 4x - 7 and g(x) = 2x - 3. Find (f*g)(4) a. 9 b. 13 c. 5 d. 15
Mathematics
schrodinger
  • schrodinger
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Haseeb96
  • Haseeb96
f(x) * g(x)= (f*g)(x) (4x-7)(2x-3) = 8x^2 -12x -14x +21 = 8x^2 -26x +21 now(f*g)(x) = 8x^2 -26x +21 replace x with 4 and get your final answer and show me what u get
anonymous
  • anonymous
i got 45
Haseeb96
  • Haseeb96
yes u are correct let me review it again

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Haseeb96
  • Haseeb96
(f*g)(x) = f(g(x)) = f(2x-3) = 4(2x-3)-7 = 8x -12 -7 = 8x - 19 now replace x by 4 in (f*g)(4) = 8(4) -19 = 32-19 = 13 is correct answer
Haseeb96
  • Haseeb96
Sorry for misunderstanding I was busy in chatting with my friends sorry again
Haseeb96
  • Haseeb96
@Emilys819 Did u get it ? now
anonymous
  • anonymous
no prob i see exactly what i need to do now thankyou!
anonymous
  • anonymous
yes i did
Haseeb96
  • Haseeb96
Thank you. Sorry again
anonymous
  • anonymous
completely fine

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