SOLUTION: Hi! This is a fairly simple question: how much can you simplify in this problem using i (square root of - 1): {{{ - 2 +- sqrt( - 36 ) / 10 }}} The original problem was {{{ 5x^2-8x+

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Hi! This is a fairly simple question: how much can you simplify in this problem using i (square root of - 1): {{{ - 2 +- sqrt( - 36 ) / 10 }}} The original problem was {{{ 5x^2-8x+      Log On


   



Question 451729: Hi! This is a fairly simple question: how much can you simplify in this problem using i (square root of - 1): +-+2+%2B-+sqrt%28+-+36+%29+%2F+10+ The original problem was +5x%5E2-8x%2B5=0+ Thanks
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
when applying the "quadratic formula"
Instead of:
+%28-+2+%2B-+sqrt%28+-+36+%29%29+%2F+10+
It should be:
+%288+%2B-+sqrt%28+-+36+%29%29+%2F+10+
.
+%288+%2B-+sqrt%28+-+1%2A6%2A6+%29%29+%2F+10+
+%288+%2B-+6%2Asqrt%28-1%29%29+%2F+10+
+%288+%2B-+6i%29+%2F+10+
+%284+%2B-+3i%29+%2F+5+