Mathematics

23 June, 14:44

Write the following conjugate binomial in standard form.

Like this example.

(a) (x + 3) (x - 3)

= x (x - 3) + 3 (x - 3)

= x^2 - 3x + 3x - 9

= x^ 2 - 9

I have to answer B like this but I'm not sure if you have to repeat (x+5) twice or (x-5) considering the fact that it's written like this instead.

B) (x - 5) (x + 5)

+3

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