Asked by Michelle

simplfy 5/ (8+ã7)

11 years ago

Answered by Reiny

I will assume that by "simplify" you mean rationalize

5/(8+√7)
= 5/(8+√7) * (8-√7)/(8-√7)
= (40 - 5√7)/(64 - 7)

= (40 - 5√7)/57

11 years ago

Answered by bridget

thank you.

11 years ago

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