Multiply (x + 7)(x - 7)
Solution:
F - First terms
O - Outer terms
I - Inner terms
L - Last terms
[tex](x + 7)(x - 7)[/tex]
[tex] = (x)(x)[/tex]
[tex] = (x)( - 7)[/tex]
[tex] = (7)(x)[/tex]
[tex] = (7)( - 7)[/tex]
[tex] = {x}^{2} - 7x + 7x - 49[/tex]
[tex] = {x}^{2} - 49[/tex]
Final Answer: x² - 49
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