找到你今天要练的题。

\( y=3x+13 \) 
\( y=3x^2+13 \) 
Which ordered pair (x, y) is a solution to the given system of equations?

\( 24x^2-\left(12a+2b\right)x+ab=0 \) 
In the given equation, a and b are positive constants. The sum of the solutions to the given equation is \( k\left(6a+b\right) \), where k is a constant. What is the value of k？

\( x^2-84x-14=0 \) 
What is the sum of the solutions to the given equation?

7x²(4x -13) (4x-u)=0
In the given equation,  u is a positive constant. The sum of the solutions to the equation  is 25 .  What is the value of u?

\( 24x^2-\left(12a+2b\right)x+ab=0 \) 
In the given equation, a and b are positive constants. The sum of the solutions to the given equation is \( k\left(6a+b\right) \), where k is a constant. What is the value of k?

\( x\left(x+4\right)-140=3x\left(x-10\right) \) 
What is the sum of the solutions to the given equation?

\( -3x^2-7x+1=0 \) 
What is the greatest solution to the given equation?

\( x^2-24x-8=0 \) 
What is the sum of the solutions to the given equation?

\( 125x^2-\left(25a+5b\right)x+ab=0 \) 
In the given equation, a and b are positive constants. The sum of the solutions to the given equation is \( k\left(5a+b\right) \) , where k is a constant. What is the value of k?

\( x\left(13x+27\right)+c=5 \) 
In the given equation, c is a constant. A solution to the equation is \( \frac{-27+\sqrt{261}}{26} \). What is the value of c?

The function h is defined by \( h\left(x\right)=-\sqrt{x^2+bx+c} \)  where b and c are constants. In the xy-plane, the graph of \( y=h\left(x\right) \)contains the points \( \left(2,\ 0\right) \) and \( \left(0,\ -\sqrt{358}\right) \). If \( h(m)=0, \)what is the greatest possible value of m?

\( f\left(x\right)=\left(x-a\right)\left(x-b\right) \) 
The function \( f \) is defined by the given equation, where a and b are integer constants. If \( f(17)>0 \),\( f(20)<0 \) and \( f(23)>0 \) , what is one possible value of \( a+b \) ?