Posted by Jon on Friday, February 29, 2008 at 6:53pm.
What exactly is your question? I don't even see a denominator anywhere :)
What you have is right so far. If you want to finish that question you need to use the quadratic formula
x = (-b +/- square root(b^2 - 4ac)) / 2a
x = (5 +/- square root (25 + 192)) / 16
x = (5 +/- square root (217)) / 16
which yields x1 = 1.23 and x2 = -0.61
(7x^2+3x-9)-(-x^2+8x-3) is the question. the rest is my work
Your solution is perfect, did you just want confirmation?
yes
Related Questions
Math - Solve each equation by completing the square. -36x=8x^2+28 -8x^2-3x=-5 5x...
Math - Solve each equation by completing the square. -36x=8x^2+28 -8x^2-3x=-5 ...
algbra - i was wondering what did i do wrong in this 10. Divide (3x – 2)(x...
Math - Can someone please check my answers below for accurateness? The ...
math algebra 2 - polynomial complete the table for -7x^4+8x^3-3x^2+5x-9 not sure...
Math/Algebra - Find each sum or difference (3x^2 + 7x- 2)+ (2x^2 - 3x + 4) ...
Troy - Can someone check my answers for the following problems. Simplify. Assume...
Math - Factor each expression. Please show me how to do it. Thanx 8x^2-10x+3 15X...
math - this is how i worked it out and i keep gettin a decimal: 4x+(9-3x)=8x-1 ...
math - srry i put add instead of subtract srry this is wat i ment 2 put 4x-(9-3x...
For Further Reading
