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17-02-2021
Mathematics

contestada

Factorise fully
X^2 - 25

Respuesta :

17-02-2021

Answer:

(x+5)(x-5)

Step-by-step explanation:

x^2-25 = x^2 - 5^2 = (x+5)(x-5)

rule: a^2 - b^2 = (a+b)(a-b)

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