rationalise the denominatiors 7√3-5√2/√98-√18
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7√3-5√2/7√2-3√2
;7√3-5√2/4√2 × 4√2/4√2
;28√6-40/32
;4(7√6-10)/32
;7√6-10/8
is your answer
;7√3-5√2/4√2 × 4√2/4√2
;28√6-40/32
;4(7√6-10)/32
;7√6-10/8
is your answer
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