РЕШЕНИЕ:
b+(6a− b²) =
_____b

b²+6a− b² =
____b

6a =
b

6 ∙ 66 = 6
66

Ответ: 6

РЕШЕНИЕ:

a²​−4b² ⋅ __a__ =
3a² ____ 3a+6b

(a ​−2b)(a+2b) ⋅ __a__ =
3a² ____ _____ 3(a+2b)

a-2b ⋅ __1__ =
3a ______3

a-2b =
9a

1 - 2b =
___ 9a

1 - 2√245 =
9___ 9√125

1 - 2√49 =
9___ 9√25

= 1/9 - 14/45 = 5/45 - 14/45 = 9/45 = 0.2

Ответ: 0.2

РЕШЕНИЕ:

a²​−49b² : ab-7b² =
____a² ___ a

(a-7b)(a+7b) ∙ a_____ =
____a² _____ b (a-7b)

a+7b =
ab

10+7 ∙ 25 =
10 ∙ 25


185 = 0.74
250

Ответ: 0.74

РЕШЕНИЕ:
− 24ab-(-4a+3b)² = -24ab - (16a²-24ab+9b²) = -24ab-16a²+24ab-9b² = -16a² -9b²

-16a² - 9b² = (-16)∙√7² + (-9) ∙ √5² = (-16)∙ 7 + (-9) ∙ 5 = -112 - 45 = - 157

Ответ: - 157

РЕШЕНИЕ:

a^2​−16b² : (1__−1) =
4ab_ ____ 4b _ a

(a-4b)(a+4b) : (a-4b) =
4ab________ 4ba

(a-4b)(a+4b) ∙ 4ab =
4ab__ __ __ a - 4b

a + 4 b = 3 5/13 + 4 ∙ 4 2/13 = 3 5/13 + 16 8/13 = 19 13/13 = 20

Ответ: 20

РЕШЕНИЕ:

a²​−49b²⋅__a___ =
a² _____ a - 7b

(a-7b)(a+7b)⋅__a___ =
a² ________ a - 7b

a+7b =
a

1 + 7b =
____a

1 + 7√96 =
____ √6

1 + 7√16 =

= 1 + 28 = 29

Ответ: 29