Question

пж решите очень надо 1) без решений 2) с ними​

Answer 1

Ответ:

1.

а) 3

б) 50

в) 2,5

г) -0,7

Answer 2

1.

$a)3 \\ b)50 \\ c)1 \frac{1}{4} \\ d) - 0.7$

2.

${x}^{2} = 10 \\ x = + \sqrt{10} \\ x = - \sqrt{10}$

$\frac{1}{3} {x}^{2} = 2 \\ {x}^{2} = 6 \\ x = + \sqrt{6} \\ x = - \sqrt{6}$

$4 {x}^{2} - 28 = 0 \\ {x}^{2} - 7 = 0 \\ {x}^{2} = 7 \\ x = + 7 \\ x = - 7$

${(x - 3)}^{2} = 9 \\ {(x - 3)}^{2} - 9 = 0 \\ (x - 3 - 3)(x - 3 + 3) = 0 \\ (x - 6)x = 0 \\ x = 6 \\ x = 0$

$\sqrt{x + 1} = 7 \\ x + 1 = 49 \\ x = 48$