Mathematics
Junior High
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至急です‼️
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=a² + 8a - 20
( x + ²/² ) ( x + 1/² )
6
=x²-1³ x +
(5) (a+3) (a−9)
e
(6) (2x-v) (2x-5v)
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若しくは乗法公式
(x+a)(x+b)=x∧2+(a+b)x+ab