SOLUTION: 2(x-4)^2=13 find the soulution

Algebra ->  Equations -> SOLUTION: 2(x-4)^2=13 find the soulution      Log On


   

Question 399884: 2(x-4)^2=13
find the soulution
Answer by sofiyac(983) About Me  (Show Source):
You can put this solution on YOUR website!
2%28x%5E2-8x%2B16%29=13
2x%5E2-16x%2B32=13
2x%5E2-16x%2B32-13=0
2x%5E2-16x%2B19=0
a=2, b=-16, c=19
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
***
x+=+%2816+%2B-+sqrt%28+256-4%2A2%2A19+%29%29%2F%282%2A2%29+
***
x+=+%2816+%2B-+sqrt%28+256-152+%29%29%2F%284%29+
***
x+=+%2816+%2B-+sqrt%28+104+%29%29%2F%284%29+
***
x+=+%2816+%2B-+2sqrt%28+26+%29%29%2F%284%29+
***
x+=+2%288+%2B-+sqrt%28+26+%29%29%2F%284%29+
***
x+=+%288+%2B-+sqrt%28+26+%29%29%2F%282%29+
***
x+=+4+%2B-+%28sqrt%28+26+%29%29%2F%282%29+