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شائع >

expand (s+1)*(s+2)

الحلّ

expand

(s + 1) \cdot (s + 2)

الحلّ

s^{2} + 3 s + 2

خطوات الحلّ

(s + 1) (s + 2)

Apply FOIL method

(s + 1) (s + 2) : s^{2} + 3 s + 2

= s^{2} + 3 s + 2

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