grandmaruthlul grandmaruthlul

17-05-2020
Mathematics

contestada

The polynomial is a difference of perfect squares. Use the formula a2 – b2 = (a + b)(a – b) to factor completely.

81x2 – 49

Respuesta :

18-05-2020

Answer:

[tex]81x^{2} -49\\(9x)^2-7^2\\(9x-7)(9x+7)[/tex]

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