5(2x+5)²化简
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5(2x+5)²化简5(2x+5)²化简5(2x+5)²化简=5((2x)^2+2*(2x)*5+5^2)=5(4x^2+20x+25)=20x^2+100x+125=5
5(2x+5)²化简
5(2x+5)²化简
5(2x+5)²化简
=5((2x)^2+2*(2x)*5+5^2)
=5(4x^2+20x+25)
=20x^2+100x+125
=5(4x²+20x+25)
=20x²+100x+125
5(2x+5)²
=5(4x²+20x+25)
=20x²+100x+125