10) Simplify-
a) 25+ (-21) + (-20) + (+17) + (-1)
b) (-6) - (-10) + 5 + 17.
Answers
Answer:
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Answer:
a) Required value of 25+ (-21) + (-20) + (+17) + (-1) is 0.
b) required value of (-6) - (-10) + 5 + 17 is 26.
Step-by-step explanation:
a) Given,
We know,
So,
So, required value is 0.
b)
So, required value is 26.
This is a problem of Simplification part of Algebra.
Some important Algebra formulas.
(a + b)² = a² + 2ab + b²
(a − b)² = a² − 2ab − b²
(a + b)³ = a³ + 3a²b + 3ab² + b³
(a - b)³ = a³ - 3a²b + 3ab² - b³
a³ + b³ = (a + b)³ − 3ab(a + b)
a³ - b³ = (a -b)³ + 3ab(a - b)
a² − b² = (a + b)(a − b)
a² + b² = (a + b)² − 2ab
a² + b² = (a − b)² + 2ab
a³ − b³ = (a − b)(a² + ab + b²)
a³ + b³ = (a + b)(a² − ab + b²)
Know more about Algebra,
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2) https://brainly.in/question/1169549
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