iikatreii iikatreii

11-02-2019
Mathematics

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URGENT!!!
Can someone please answer these 2 questions and show the working out?

URGENT Can someone please answer these 2 questions and show the working out class=

Respuesta :

musiclover10045 musiclover10045

11-02-2019

A) Factor using the difference of squares formula: a^2 - b^2 = (a+b) (a-b)

a = X and B = 33

(x+33) (x-33)

b)

67^2 - 33^2 =

(67 * 67) - (33 * 33) =

4489 - 1089 = 3400

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