39. \( 14 x-(3 x-2)-[5 x+2-(x+1)] \quad x=-1 / 7 \) 40. \( (3 x-7)^{2}-5(2 x+1)(x-2)=-x 2-[-(3 x+1)] \quad x=29 / 15 \) \( 41.6 x-(2 x+1)=-\{-5 x+[-(-2 x-1)]\} \quad x=0 \)

Write the equation in standard form \( 2 x^{2}-6 x+7=0 \)

Compute the value of the discriminant and give the number of real solutions of the quadratic equation, \( 3 x^{2}-7 x+2=0 \) Discriminant: Number of real solutions:

Write the equation in standard form. \[ x(x+8)=-43 \]

2. \( (x-4)=18 \)

Quadratic Formula Write the equation in standard form. Then solve by the quadratic formula. \( \left.\qquad \begin{array}{l}\text { Question } 9.2 \\ \text { Part } 2 \text { of } 2\end{array}\right)=-48 \)