✨ Best Answer ✨
x²+8x+2xy+y²+8x+16
￣￣￣￣￣
=x²+8x+2xy+(y+4)²
=x²+2x(4+y)+(y+4)²
=x²+2x(y+4)+(y+4)²
=x²+2xA+A²
=(x+A)²
=(x+y+4)²
Mathematics
Junior High
Solved
⑻の因数分解がわかりません
⑥ 6 x²+14+2xy-9y+y2-9x
⑦x²-3x+y2+2xy-3 y
8 x 2+8x+2xy+y2+8y+16
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