Simplify (7√5+5√3) (7√5-5√3)
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this is your answer i.e. 170
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(7√5 + 5√3) (7√5 - 5√3)
= {(7√5)² - (5√3)²}
= {49(5) - 25(3)}
= 245 - 75
= 170
= {(7√5)² - (5√3)²}
= {49(5) - 25(3)}
= 245 - 75
= 170
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