oliviajones2366 oliviajones2366

02-04-2020
Mathematics

contestada

Could anyone help me with this question? And could you also provide a explanation? I would be so grateful for any help.

Factorise fully 21a-7a^2

Respuesta :

sallyfordam sallyfordam

02-04-2020

Answer:

Step-by-step explanation:

7a(3-a)

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