зАдание №з Дополните выражение до полного квадрата суммы и запишите квадрат суммы: \( (7 t)^{2}+70 t j+(\square)^{2}=( \)

\( (\sqrt{16})^{2}+(\sqrt{49})^{2} \quad \) ii) \( \sqrt{(-6)^{2}}+\sqrt{6^{2}} \quad \) iil) \( \sqrt{(-5)^{2}}+\sqrt{\left(-\frac{4}{5}\right)^{2}} \)

\( x^{2}+2 x y^{2}+y^{4} \) \( (x-y)^{2} \) \( 4 x^{2}-4 x+1 \) 2. \( 4 x^{3}-12 x^{2} y+9 x y^{2} \) \( \left(2 x^{2}-\right. \)

3. How many solutions does the equation \( 5(x-2)=8+5 x \) have? A no solution B. one solution C. two solutions D. infinitely many solutions

15 Mark for Review \( \frac{x-18}{6}+\frac{y+25}{3}=-5 \) The solution to the given system of equations is \( (x, y) \). What is the value of \( x-y \) ?

Solve the following pair of linear equations by the elimination method and the substiturio \( \frac{x}{2}+\frac{2 y}{3}=-1 \) and \( x-\frac{y}{3}=3 \)