6x^2+11x+3=0 plzz send me the answer of this question
Answers
Answered by
3
ANSWER:
- Value of x is -3/2 or -1/3
GIVEN:
- P(x) = 6x²+11x+3
TO FIND:
- Zeros of P(x)
SOLUTION:
=> 6x²+11x+3 = 0
=> 6x²+9x+2x+3 = 0
=> (6x²+9x)+(2x+3) = 0
=> 3x(2x+3)+1(2x+3) = 0
=> (2x+3)(3x+1) = 0
Either (2x+3) = 0
=> x = -3/2
Either (3x+1) = 0
=> x = -1/3
Value of x is -3/2 or -1/3
NOTE:
Some important formulas:
(a+b)² = a²+b²+2ab
(a-b)² = a²+b²-2ab
(a+b)(a-b) = a²-b²
(a+b)³ = a³+b³+3ab(a+b)
(a-b)³ = a³-b³-3ab(a-b)
a³+b³ = (a+b)(a²+b²-ab)
a³-b³ = (a-b)(a²+b²+ab)
(a+b)² = (a-b)²+4ab
(a-b)² = (a+b)²-4ab
Answered by
1
Answer:
6x²+11x+3=0
=> 6x²+2x+9x+3 = 0
=>2x(3x+1) + 3( 3x+1) =0
=>(3x+1) (2x+1) =0
=>x = - 1 , - 1
3 2
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