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Quadratic Trinomial(ax²+bx+c)

The expansion...

Question

The expansion of the algebraic identity ( x + a ) ( x + b ) is:

A

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B

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C

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D

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Solution

The correct option is C

$(x + a) (x + b)$
$= x^{2} + b x + a x + a b$
$= x^{2} + (a + b) x + a b$ .

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