I forgot the method to solve these, and help I really appreciated. Tysm ^^

asked May 6, 2019 221k views

3 votes

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5 votes

first divide
140 by 560

$a - {a}^(2) = { a}^( - 1)$

${b}^(2) - b = b$

$\frac{1 {a}^( - 1) }{4b}$

(1)/(4ab)

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