SOLUTION: Solve {{{ 0.01x^2+0.14x+0.13=0 }}}

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Question 973714: Solve +0.01x%5E2%2B0.14x%2B0.13=0+
Found 2 solutions by Boreal, MathLover1:
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
0.01x^2+0.14x+0.13=0 Multiply by 100
x^2+14x+13=0
(x+13)(x+1)=0
x= -13, -1
Check .13^x^2-1.82x +0.13= 1.69-1.82+0.13=0
Check 0.01 -0.14 +0.13 =0

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
+0.01x%5E2%2B0.14x%2B0.13=0+....multiply by 100 to eliminate decimals
+100%2A0.01x%5E2%2B100%2A0.14x%2B100%2A0.13=0+
+x%5E2%2B14x%2B13=0+.....write 14x as x%2B13x
+x%5E2%2Bx%2B13x%2B13=0+......group
+%28x%5E2%2Bx%29%2B%2813x%2B13%29=0+..........factor
+x%28x%2B1%29%2B13%28x%2B1%29=0+
+%28x%2B13%29%28x%2B1%29=0+
solutions:
if
+%28x%2B13%29=0+, then x=-13
if
+%28x%2B1%29=0+, then x=-1

+graph%28+600%2C+600%2C+-20%2C+10%2C+-10%2C+10%2C+0.01x%5E2%2B0.14x%2B0.13%29+