Sum of two no is 20 deffreence between their sqares 100 determine the product
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Le produit de ce deux nombres nous donne -20+100=80
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Let no. be x and y. x+y=20..........(1). (x^2-y^2)=100. (x+y)(x-y)=100=>20(x-y)=100. =>(x-y)=5.......(2). x+y=20=>x=20-y.............(3) x-y=5=>20-y-y=5=>-2y=-15=>y=15/2. x=20-15/2=25/2. Therefore, xy=25/2*15=375/4.ans_. Please mark me as brainlest.
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