SOLUTION: solve each equation for x x^2+4x+4=7 hint factor the left side i am very confused by this

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: solve each equation for x x^2+4x+4=7 hint factor the left side i am very confused by this      Log On


   



Question 89337: solve each equation for x
x^2+4x+4=7
hint factor the left side
i am very confused by this

Answer by THANApHD(104) About Me  (Show Source):
You can put this solution on YOUR website!
x^2+4x+4=7
subtract 7 from each side, so that u can set one side to 0
x^2+4x+4-7 =7-7
x^2+4x-3=0
use the the quadratic formulae.
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%28-4+%2B-+sqrt%28+4%5E2-4%2A1%2A%28-3%29+%29%29%2F%282%2A1%29+
x+=+%28-4+%2B-+sqrt%28+28+%29%29%2F%282%2A1%29+
x+=+%28-4+%2B5.29%29%2F%282%2A1%29+ x+=+%28-4+-+5.29%29%2F%282%2A1%29+
x+=+1.29%2F%282%2A1%29+ x+=+-9.29%2F%282%2A1%29+
x+=+0.645+ x+=+-4.646+