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For which product is the coefficient of $x$ equal to zero?

Class 8Multiplying PolynomialsAlgebra

A $(x + 3) (x - 1)$
B $(x + 3) (x - 3)$
C $(x + 3) (x + 3)$
D $(x - 3) (x - 3)$

Step-by-Step Solution

(x + 3) (x - 3) = x^{2} - 3 x + 3 x - 9 = x^{2} - 9

: the

x

-terms cancel. The others have

6 x, - 6 x

and

2 x

.

Answer: B)

(x + 3) (x - 3)

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