sohailmohammed4321 sohailmohammed4321

17-01-2022
Mathematics

contestada

factorise 81 - x^2
[tex]81 - x {}^{2} [/tex]

Respuesta :

Kaprikorn Kaprikorn

17-01-2022

Answer:

(9 - x) × (9 + x)

Step-by-step explanation:

81 - x^2

= 9^2 - x^2

= (9 - x) × (9 + x)

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