Question

2a+4=0;a=2,-2 please give answer​

Answer 1

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• Put a = 2

⇝2 (2) + 4 = 0

$⇝4 + 4 \: { \cancel{ = } \: 0}$

• put a = -2

⇝ 2 (-2) + 4 = 0

⇝-4 + 4 = 0

$⇝0 = 0$✔

Answer 2

2a+4=0

2a= -4

a= -2

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