SOLUTION: {{{ x^2-2x-3= sqrt( 4 ) }}}. Tutors will see it as: Please help me solve this equation: .

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Question 644667: +x%5E2-2x-3=+sqrt%28+4+%29+.
Tutors will see it as: Please help me solve this equation: .
Found 2 solutions by MathLover1, lynnlo:
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
+x%5E2-2x-3=+sqrt%28+4+%29+................recall that sqrt%28+4+%29=2+
+x%5E2-2x-3=+2+
+x%5E2-2x-3-2=0+
+x%5E2-2x-5=0+.........use quadratic formula
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%28-%28-2%29+%2B-+sqrt%28+%28-2%29%5E2-4%2A1%2A%28-5%29+%29%29%2F%282%2A1%29+
x+=+%282+%2B-+sqrt%28+4%2B20+%29%29%2F2+
x+=+%282+%2B-+sqrt%28+24+%29%29%2F2+

x+=+%282+%2B-+4.89%29%2F2+
solutions:
x+=+%282+%2B+4.89%29%2F2+
x+=+6.89%2F2+
x+=+3.45
or
x+=+%282+-4.89%29%2F2+
x+=+-2.89%2F2+
x+=-1.45
+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+x%5E2-2x-5%29+



Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
what is that symbol in this problem