Question

1. Find the value of a if x + 6 is a factor of x² + 3x² + 4x + a.
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Answer 1

Answer:

if x+6 is a factor of x² + 3x² + 4x + a.

then it will satisfy the equation.

${x}^{2} + 3 {x}^{2} + 4x + a = 0$

$4 {x}^{2} + 4x + a = 0$

$p( - 6) = 4( { - 6)}^{2} + 4( - 6) + a = 0$

$4 \times 36 - 24 + a = 0$

$144 - 24 + a = 0$

$120 + a = 0$

$a = - 120$

Answer 2

Explanation:

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