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Root 63 - 3 root 28 + 4 root 7

1 Answer

3 votes

Answer:

we decompose the √

√63 = √9*√7 = 3√7

3√28 =3*√4*√7 = 3*2*√7 = 6√7

√63 - 3√28+4√7=

3√7 -6√7+4√7 = √7

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