Question

(2-5x)*(4)-(4x+3)*(-5)

it's 23.. but im blanking out and can't figure out why..

Answer 1

is it set equal to something?
if its not, then you cant say its 23

Answer 2

I did the quotient rule and this is the numerator. it says when simplified it is 23

Answer 3

(2-5x)*(4)-(4x+3)*(-5)

(2*4-5x*4) - (4x*-5 + 3*-5)

(8 - 20x) - (-20x - 15)

8 - 20x + 20x + 15

I'll let you finish

Answer 4

oh derivative
i guess that makes sense now

Answer 5

But you already have the answer, so I guess it's not much of a jump

Answer 6

I figured it out, i was messing up with the negative signs. thanks!

Answer 7

np