Fsc Part 1 Mathematics (Complete Solution)

Q1
Solve the Following equations by factorization

3x2 + 4x + 1 = 0
3x2+ 3x + x + 1 = 0
[∴ 3 x 1 = 3 and 3 + 1 = 4]
3x(x + 1) + 1(x + 1) = 0
(3x + 1)(x + 1) = 0

Either 3x + 1 = 0      OR      x + 1 = 0
x = -
1
3
x = -1
∴ Soution Set = { -
1
3
, -1 }

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