还有根号计算题,1.计算(1)3√0.001-√2又1/4-2 (2)√48-√32-√98+2√75(3)[(ab+1)(ab-1)-2a²b²+1]÷ab,其中a=5,b=7/152.若4x²+kx+25=(2x-5)²,那么k=______3.解二元一次方程组:2a+4b=4000 ①3a+3b
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![还有根号计算题,1.计算(1)3√0.001-√2又1/4-2 (2)√48-√32-√98+2√75(3)[(ab+1)(ab-1)-2a²b²+1]÷ab,其中a=5,b=7/152.若4x²+kx+25=(2x-5)²,那么k=______3.解二元一次方程组:2a+4b=4000 ①3a+3b](/uploads/image/z/1257624-0-4.jpg?t=%E8%BF%98%E6%9C%89%E6%A0%B9%E5%8F%B7%E8%AE%A1%E7%AE%97%E9%A2%98%2C1.%E8%AE%A1%E7%AE%97%EF%BC%881%EF%BC%893%E2%88%9A0.001-%E2%88%9A2%E5%8F%881%2F4-2+%EF%BC%882%EF%BC%89%E2%88%9A48-%E2%88%9A32-%E2%88%9A98%2B2%E2%88%9A75%EF%BC%883%EF%BC%89%5B%28ab%2B1%29%28ab-1%29-2a%26%23178%3Bb%26%23178%3B%2B1%5D%C3%B7ab%2C%E5%85%B6%E4%B8%ADa%3D5%2Cb%3D7%2F152.%E8%8B%A54x%26%23178%3B%2Bkx%2B25%3D%EF%BC%882x-5%EF%BC%89%26%23178%3B%2C%E9%82%A3%E4%B9%88k%3D______3.%E8%A7%A3%E4%BA%8C%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%E7%BB%84%EF%BC%9A2a%2B4b%3D4000+%E2%91%A03a%2B3b)
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