1. Вынесите общий множитель за скобки: a) \( 2 \mathrm{a}-4 \) б) \( 3 \mathrm{x}-2 \mathrm{x}^{2}+\mathrm{x}^{3} \) в) \( \mathrm{p}^{2} \mathrm{q}+\mathrm{pq}^{2} \) r) \( 5 \mathrm{~m}^{2} \mathrm{~b}-10 \mathrm{mb} \) д) \( 6 \mathrm{x}(\mathrm{x}-\mathrm{y})+\mathrm{y}(\mathrm{x}-\mathrm{y}) \) e) \( 5 \mathrm{c}+10 \) ж) \( 8 \mathrm{a}^{2}+3 \mathrm{a}-2 \mathrm{a}^{3} \) 3) \( \mathrm{m}^{2} \mathrm{n}^{2}-\mathrm{mn}^{3} \)

\( \sqrt{\frac{2}{a}}=\frac{1}{a} \sqrt{2 a} \).

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

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

\( x, y \in R^{+} \)olmak üzere, \( x \cdot y=5 \) \( x^{2}+y^{2}=15 \) olduğuna göre, \( x+y \) toplamı kaçıır?

\( a+b=5, a \cdot b=1 \) olduguna göre, \( a^{2}+b^{2} \) toplaminı bulunuz. \( \left(\frac{a+b}{5}\right)=a^{2}+2 \cdot a \cdot b+b^{2} \)