9√63÷3√7 is equal to:
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Answer:
9
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Answer:
7√63 - 3√7 = (√7 x √7) (√(7 x 9)) - 3√7 = ( √7 x √7 x √7 x 3) - 3√7 = 3√7 {(√7 x √7) - 1} = 3√7 x (7–1) = 3√7 x 6 = 18√7.
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