Question

ПОМОГИТЕ СРОЧНО ПОЖАЛУЙСТА ​

Answer 1

2.

$\displaystyle\bf\\\left \{ {{x - 6y = - 2} \atop {2x + 3y = 11 \: \: | \times 2 }} \right. \\ \displaystyle\bf\\ + \left \{ {{x - 6y = - 2} \atop {4x + 6y = 22}} \right. \\ \\x + 4x = 22 - 2 \\ 5x = 20 \\ x = 20 \div 5 \\ x = 4 \\ \\ 4 - 6y = - 2 \\ 6y = 4 + 2 \\ 6y = 6 \\ y = 6 \div 6 \\ y = 1$

Ответ: ( 4 ; 1 )

3.

а) 3)

$- 4 {x}^{5} {y}^{2} \times 3x {y}^{4} = - 12 {x}^{5 + 1} {y}^{2 + 4} = \\ = - 12 {x}^{6} y {}^{6}$

б) 1)

$(3 {x}^{2} {y}^{3} ) {}^{2} = 3 {}^{2} {x}^{2 \times 2} {y}^{3 \times 2} = 9 {x}^{4} {y}^{6}$