Question

$a - b = 4 \\ \\ {a }^{2} - {b }^{2} = 24$
a+b=?

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Answer 1

a - b = 4

a² - b² = 24

⇒ (a + b) * (a - b) = 24

(a + b) * 4 = 24

a + b = 6