4 by 412"simplify,a) (-3+15) (-3-15) – InterviewSolution

1.

4 by 412"simplify,a) (-3+15) (-3-15)

Answer»

(-3*-3)+(-3*-√5)+(√5*-3)+(√5*-√5)

9+3√5-3√5-5

9-5

4 is the answer

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