Mathematics
Senior High
Solved
この3問の途中式を教えてください！
(7) x² +5xy+4y²
(x+2a)(3x-a)
(9) x²-ax-12a²
(x+54)(4x-2y)
(8) x² +7xy-18y²
(2x-3a ) (3x +α)
A=56+bo
XI
$=b_E=> A=0 [ms
DO
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