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their all negative options. I just didn't notice there weren't there sorry.
replaced x with -4
isn't it g(x)*f(x)*(-4)
are you familiar with these?
actually what i hav studied is that f(x) or g(x) can be written as f or g and f'g is f multiplied g
I think there's a few ways you can actually do it.
there is also braces for (f'g) separating it from (-4)
those ways can change the entire ans. actually!
Here's the question is \((g\circ f)(x)\) right?
Here's the thing: \[(g\circ f)(x)=g\left( f(x)\right)\\ gf(x)=g(x)\times f(x) \] right?
that circle between g and f means g "of" f
Still confused? It's the same as before g(f(4))
Same sort of question
I did g(f(-4)) = 3(4x+7)-5 but that's wrong
so now I'm going through everything again
That's g(f(x)), you're on the right track g(x) = 3x-5 and f(x) = 4x+7 g(f(x)) = 3(4x+7)-5 for g(f(1)) we plug in 1 now where the x is. g(f(1)) = 3[4(1)+7]-5
oh I was doing -4 but I do 1 I guess.
Oh oops it's -4
g(f(-4)) = 3[4(-4)+7]-5
You're doing it right then, why doubt yourself? :P
The other people helping me were showing me different things so I just assumed I was wrong. I was feeling really confident about it actually. Anyways I was right and the answer is -32.