# math

posted by on .

solve the equation: 2x^2 +8x - 17=(x +2)^2= x=-7,3
solve (v-5)^2-63=0, where v is a real number, simplify answer as much as possible. v=3 square root 7+5,-3 square root7+5
v``12.93725, -2.937254
use the quadratic formula to solve for x.
4x^2x-4=0
=x=1+squar root65/8 , 1-square root65/8=x``1.132782,-0.882782
thank yu

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the first one is correct

the second is correct

third, you have a typo in your equation
the answers are correct if the equation is
4x^2 - x - 4 = 0

• math - ,

Thanks Reiny!!

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could you please check this for me? Thanks
use the quadratic formula to solve for x. 4x^2-x-4=0
x=1+ square root 65/8, 1- square root 65/8 = x``1.132782,-0.882782

• math - ,

sorry I have a few more and I need the answers quick!!
Find the value: ^3 square root -27= 9
Write the following in simlpified radical form: ^4 square root 80= 4
Solve for x, where x is real number: square 5x + 9= square root 9x + 13=27

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SIMPLIFY:
32 3/5= 15 IS THIS CORRECT?

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No, 32 3/5 cannot be simplified.

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is this correct if not can you tell me wha it is please
32 3/5= 163/5