a)
√5(√5+√25-√20)=
b)
√7(√2²₇-3√7+√63)=
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a) √25+√75-√100=5-5√3-10=-5√3-5=-5(√3+1)
b) √7*√16/7-3*√49+√441=√16-21+21=4
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a) √25+√75-√100=5-5√3-10=-5√3-5=-5(√3+1)
b) √7*√16/7-3*√49+√441=√16-21+21=4