Question

Evaluate the integral using the given substitution.
∫dx/(sqrt 4x+4), u=4x+4
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Answer 1

ok so you are even given the substitution , find derivative of u , then substitude in the integral

Answer 2

Derivative of u is 4

Answer 3

wait you mean antiderivative?

Answer 4

no no i mean derivative , 4 is correct but let me write it for you
du=4dx

Answer 5

ok so now \[dx=\frac{ du }{ 4 }\] and u=4x+4
so substitude in the integral for that

Answer 6

Okay got it, then what

Answer 7

so what do you get when u substitude for u and replace dx with du/4

Answer 8

I need you to set that up for me, I'm a little confused

Answer 9

ok so we have u=4x+4 and dx=du/4 so the integral becomes
\[\int\limits_{}^{}{\frac{ du }{ 4\sqrt{u} }}\]

Answer 10

do you know to solve this integral now ?

Answer 11

no :/

Answer 12

huh , ok so the constant there we can pull out of the integral so it would be