(2x+1)² -4 (x-3)² = 5x + 10 Find the value of x , step by step explanation please.
Answers
Answered by
3
Answer:
- The value of x is 45/23.
Given:
- (2x + 1)² - 4 (x - 3)² = 5x + 10
To find:
- The value of x.
Solution:
=> (2x + 1)² - 4 (x - 3)² = 5x + 10
=> 4x² + 4x + 1 - 4 (x² - 6x +9) = 5x + 10
=> 4x² + 4x + 1 - 4x² + 24x - 36 = 5x + 10
=> 23x = 45
=> x = 45/23
Therefore, the value of x is 45/23.
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Extra information:
- (a - b)² = (a + b)² - 4ab
- (a + b)² = (a - b)² + 4ab
- (a + b)² + (a - b)² = 2 (a² + b²)
- (a + b)² - (a - b)² = 4ab
Answered by
9
AnswEr :-
• Value of x is 45/23.
Given :-
• (2x + 1)² - 4 (x - 3)² = 5x + 10
To Find :-
• Value of x
Solution :-
» (2x + 1)² - 4 (x - 3)² = 5x + 10
→ (2x)² + 2.2x.1 + (1)² - 4 { (x)² + (3)² - 2.x.3 = 5x + 10
→ 4x² + 4x + 1 - 4 { x² + 9 - 6x } = 5x + 10
→ 4x² + 4x + 1 - 4x² - 36 + 24x = 5x + 10
→ 4x + 1 - 36 + 24x = 5x + 10
→ 28x - 35 = 5x + 10
→ 28x - 5x = 10 + 35
→ 23x = 45
→ x = 45/23
Hence, the value of x is 45/23.
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More To Know :-
• (a + b)² = a² + b² + 2ab
• (a - b)² = a² + b² - 2ab
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