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MissTica
3 years ago
8

Rewrite without parentheses and simplify (y-5)^2

Mathematics
2 answers:
QveST [7]3 years ago
6 0
Answer:

y^2 - 10y + 25

Step-by-step explanation:

(y - 5)^2 =

(y - 5) • (y - 5)

Multiply y times y

y^2

Add 5 and 5

10

Multiply 5 and 5

25

Add these terms together

y^2 - 10y + 25

Eddi Din [679]3 years ago
4 0

Answer: (y - 5)² = y² - 10y + 25

Concept:

There are in total three general types of parentheses-squared method:

  • (a - b)² = a² - 2ab + b²
  • (a + b)² = a² +2ab + b²
  • (a - b) (a + b) = a² - b²

Solve:

Given = (y - 5)²

Apparently, the given expression accords with (a - b)², where [y] = [a] and [5] = [b].

(a - b)² = a² - 2ab + b²

(y - 5)² = y² - 2(y)(5) + 5² = y² - 10y + 25

Hope this helps!! :)

Please let me know if you have any questions

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hoa [83]

Answer:

(A) 0.377,

(B) 0.000,

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Step-by-step explanation:

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(1)(1)(.15)^6 + (6)(.85)(.15)^5 + (15)(.85)^2 *(.15)^4 + (20)(.85)^3 * (.15)^3 =

0.047

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