# math

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difference is 7, product is 30

• math -

3 and 10

• math -

a * b = 30 .....1
a - b = 7 ..... 2
a = 7 + b ......3

(7+b)(b)=30
b^2+7b-30=0

b = -10 or b = 3
a = -3 or a = 10

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