Need Massive help!!!!!

[AFAbound]

<p>I need help, I have searched butcame up with nothing. 7 problems:</p>

<p>Solve the equation by completing the square:
2x^2-12x-7=0</p>

<p>Find all real solutions of the quadratic equation:
7x^2+71x+72=0</p>

<p>Find all real solutions of the quadrating equation:
x^2-(radical17)x+4=0</p>

<p>Solve the equation for a. (its a fraction i.e. a+2 OVER B)
A+2 = A-3 + B+1
B B A </p>

<p>Solve the equation by factoring
20x(x-1)=42-9x</p>

<p>Simplify the rational expression
2x^3+x^2-10x</p>

<hr>

<p>2x^2-9x+10</p>

<p>Perform the subtraction and simplify ( its a minus sign in the middle i.e. 3 over the 5x-6 MINUS 2 over (5x-6)^2
3 _ 2</p>

<hr>

<p>5x-6 (5x-6)^2</p>

<p>I have no clue how to do these. Please help.</p>

[mark19]

<ol>
<li><p>y = 2x^2-12x-7
y + 72 = 2(x^2 - 12 + 36) -7
y + 79 = 2(x - 6)^2</p></li>
<li><p>quadratic equation = -9, -1.14</p></li>
</ol>

<p>--> I do not understand tnything after that.</p>

<p>"Solve the equation by factoring
20x(x-1)=42-9x"</p>

<p>Why would you factor it if you want to solve??</p>