SOLUTION: 27x²+ 3x - 10 = 0 solve the following quadratic equation by factoring
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Question 638010: 27x²+ 3x - 10 = 0 solve the following quadratic equation by factoring
Found 2 solutions by Olowoyeye Ajisola, MathTherapy:
Answer by Olowoyeye Ajisola(2) (Show Source): You can put this solution on YOUR website!
27x^2+3x-10=0 To solve this, we make use of formular AMP Parsing Error of [x=(-b+-sqrt(b^2-4.a.c))/2*a]: Invalid function: opening bracket expected at /home/ichudov/project_locations/algebra.com/templates/Algebra/Expression.pm line 88.
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x=(-3+-sqrt(3^2-4*27*-10))/2*27 x=-3+-sqrt(9+1080)/54 x=-3+-sqrt(1089)/54 x=-3+-33/54 x=-3+33/54 or -3-33/54 x=30/54 or -36/54 x=5/9 or -2/3
Answer by MathTherapy(10551) (Show Source): You can put this solution on YOUR website!
27x²+ 3x - 10 = 0 solve the following quadratic equation by factoring
Factors of 270 (c * a) whose sum is 3 are: 18 & 15, so replacement for b is: (18x - 15x)
now becomes:
9x(3x + 2) - 5(3x + 2) = 0
(9x - 5)(3x + 2) = 0
9x - 5 = 0 or 3x + 2 = 0
9x = 5 or 3x = - 2
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