Question

A) (x-14y+7).8; B) 6(17a+13)+(13a-5)-9; C) 39 (m+5n+c)-(2m+13c).2​

Answer 1

Ответ:

A)8x-112y+56

B)115a+64

C)35m+195n+13c

Answer 2

Let's simplify each expression step by step:

A) (x-14y+7).8 To simplify this expression, we distribute the 8 to each term inside the parentheses: 8x - 8(14y) + 8(7) Simplifying further: 8x - 112y + 56

B) 6(17a+13)+(13a-5)-9 Again, distribute the 6 to each term inside the parentheses and simplify: 6(17a) + 6(13) + (13a - 5) - 9 102a + 78 + 13a - 5 - 9 Combining like terms: 115a + 64

C) 39(m+5n+c) - (2m+13c).2 First, distribute the 39 to each term inside the first set of parentheses and distribute the 2 to each term inside the second set of parentheses: 39m + 195n + 39c - (4m + 26c) Next, distribute the negative sign to each term inside the second set of parentheses: 39m + 195n + 39c - 4m - 26c Combine like terms: (39m - 4m) + 195n + (39c - 26c) 35m + 195n + 13c

Therefore: A) (x-14y+7).8 simplifies to 8x - 112y + 56. B) 6(17a+13)+(13a-5)-9 simplifies to 115a + 64. C) 39(m+5n+c)-(2m+13c).2 simplifies to 35m + 195n + 13c.