2x^2 + 7x = 4 how do i solve this by completing the square?

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2x^2 + 7x = 4 how do i solve this by completing the square?

Mathematics
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a^2+2ab+b^2
a=2 find out what b is
thats not by completing the square tho is it ?

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Other answers:

this method will help you in long term but if you want shortcut I can show you
would you rather learn shortcut?
i just want to know the step by step because i have the answers in the back of the book i just cant get the right answers but my math is all correct
Short cut 1) Factor out 2 2(x^2 + 7/2x) 2) Take Half of x term 7/2 * 1/2 is 7/4 3) Square it 49/16 4) Since you added(49/16 * 2) you also need add to other side 4+49/8
okay let me write that down
now what
You have just completed a square 2(x^2+7/2x+49/16) Factor 2(x+7/4)^2=4+49/8
Divide both side by 2 then I think you can take it from there
so it be (4+ 49/8) / 2?
Yes
okay i got 5.0625
thanks!

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