Answer :

olumideolawoyin

Answer:

[tex]{a}^{2} - {b}^{2} [/tex]

Step-by-step explanation:

(a + b) (a -b) Open the brackets by multiplication

= a (a -b) + b (a -b)

[tex] = {a}^{2} - ab + ab - {b}^{2} [/tex]

[tex] = {a}^{2} + 0 - {b}^{2} [/tex]

[tex] = {a}^{2} - {b}^{2} [/tex]

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