Solve the quadratic equation by completing the square. \[ x^{2}-12 x+26=0 \] First, choose the appropriate form and fill in the blanks with the correct numbers. Then, solve the equation. Round your answer to the nearest hundredth. If there is more than one solution, separate them with commas. Form: Solution: \( x=\square \)

Factorise coumpletely. \( 21 a^{2}+28 a^{b} \)

Find the slope and the \( y \)-intercept of the line with the given equation. \[ 4 x+3 y=9 \] slope \( y \)-intercept \( (x, y)=(\square) \) Submit Answer

Find the \( x \) - and \( y \)-intercepts of the graph of the equation. Do not graph the line. \[ \begin{array}{l}7 x+5 y=35 \\ x \text {-intercept } \quad(x, y)=(\square) \\ y \text {-intercept } \quad(x, y)=(\square)\end{array} \]

Use the point-slope form to write an equation of the line with the given slope and point. Then write the equation in slope-intercept form. slope 4 , passes through \( (4,6) \)

Verifique se a equação abaixo é ou não é uma proporção \( \frac{2-2 x}{3 x}=-\frac{1}{3} \)