2x²+16x+16
=2( x²+8x+16)-16
=2(x+4) ²-16
=(√2x+4√2) ²-4 ²
=(√2x+4√2+4)(√2x+4√2-4)
2 x²+16x+16
2 x²+16x+16
數(shù)學(xué)人氣：328 ℃時(shí)間：2020-07-23 21:43:02
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