Приведите данное уравнение к виду (ах²+bx+c=0). 1)(х+3)²+(х-2)²=х²-5х
2)(2x-3)(x+5)-2=11-(x-4)²
3)(5x-1)(5x+1)+20x²=7x-3
4)(8-x)(8+x)+(1-4x)²=12x²+1
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