将下列各进行配方:1.x²-3/2x+______=(x-_____)²2.x²-6根号2x+_____=(x-_____)² 3.x²+4根号3x+____=(x+_____)².4.x²-ax+____=(x-_____)²解下列方程:(1)x²-7x+5=0 (2)x²
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![将下列各进行配方:1.x²-3/2x+______=(x-_____)²2.x²-6根号2x+_____=(x-_____)² 3.x²+4根号3x+____=(x+_____)².4.x²-ax+____=(x-_____)²解下列方程:(1)x²-7x+5=0 (2)x²](/uploads/image/z/4334711-23-1.jpg?t=%E5%B0%86%E4%B8%8B%E5%88%97%E5%90%84%E8%BF%9B%E8%A1%8C%E9%85%8D%E6%96%B9%EF%BC%9A1.x%26%23178%3B-3%2F2x%2B______%3D%EF%BC%88x-_____%EF%BC%89%26%23178%3B2.x%26%23178%3B-6%E6%A0%B9%E5%8F%B72x%2B_____%3D%EF%BC%88x-_____%EF%BC%89%26%23178%3B+3.x%26%23178%3B%2B4%E6%A0%B9%E5%8F%B73x%2B____%3D%EF%BC%88x%2B_____%EF%BC%89%26%23178%3B.4.x%26%23178%3B-ax%2B____%3D%EF%BC%88x-_____%EF%BC%89%26%23178%3B%E8%A7%A3%E4%B8%8B%E5%88%97%E6%96%B9%E7%A8%8B%EF%BC%9A%EF%BC%881%EF%BC%89x%26%23178%3B-7x%2B5%3D0+%EF%BC%882%EF%BC%89x%26%23178%3B)
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将下列各进行配方:1.x²-3/2x+______=(x-_____)²2.x²-6根号2x+_____=(x-_____)² 3.x²+4根号3x+____=(x+_____)².4.x²-ax+____=(x-_____)²解下列方程:(1)x²-7x+5=0 (2)x²
将下列各进行配方:1.x²-3/2x+______=(x-_____)²
2.x²-6根号2x+_____=(x-_____)² 3.x²+4根号3x+____=(x+_____)².4.x²-ax+____=(x-_____)²
解下列方程:(1)x²-7x+5=0 (2)x²+2/3x-2=0
将下列各进行配方:1.x²-3/2x+______=(x-_____)²2.x²-6根号2x+_____=(x-_____)² 3.x²+4根号3x+____=(x+_____)².4.x²-ax+____=(x-_____)²解下列方程:(1)x²-7x+5=0 (2)x²
1.x²-3/2x+_9/16_____=(x-__3/4___)²
2.x²-6根号2x+_18____=(x-_3√2____)²
3.x²+4根号3x+_12___=(x+_2√3____)².
4.x²-ax+_a²/4___=(x-_a/2____)²
x²-7x=-5
x²-7x+49/4=29/4
(x-7/2)²=29/4
∴x=7/2+√29/2 x=7/2-√29/2
x²+2/3x=2
x²+2/3x+1/9=19/9
(x+1/3)²=19/9
∴x=-1/3+√19/3 x=-1/3-√19/3