Question

if a²+2a+1=0 then a+¹/a=?​

Answer 1

Step-by-step explanation:

a square + 2 a+ 1 is equal to zero

we have to use the split the middle term

use split the middle term you will get the answer

Answer 2

Step-by-step explanation:

if

${a}^{2} + 2a + 1 = 0$

• x=1
• y=2
• z=1

USING SECOND DEGREE EQUATION

$a = (- y + \sqrt{ {y}^{2} - 4xz } ) \div 2$

$= (- 2 + \sqrt{ {2}^{2} - 4 \times 1 \times 1 } ) \div 2$

$= (- 2 + \sqrt{0}) \div 2$

there fore ,a=-1

$ie \: \: \: \: \: \: \: a + 1 \div a \\ = - 1 + 1 \div ( - 1) \\ \\ = - 1 \div 1 + - 1 \div 1 \\ = ( - 1 + - 1) \div 1 \\ = - 2$