脱式计算(175-75%3)x8
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x(x-3)
3x²×+(-x)³=3x³-x³=2x³(-3ab)³÷(-9a的4次方)×(-9分之2a²b³)=-27a³
==(x+3)(x-2)(x+1)再问:嗯就是想问下最后结果是……?00再答:(x3-x2-2x+3x2-3x-6=x3+2x2-5x-6(x后的数字表示次数)
7.02×1.02=7.1604再答:0.5×(3-2.42÷2.2)=0.5×(3-1.1)=0.5×1.9=0.95再答:0.25×32×1.25=0.25×4×8×1.25=1×10=10再问:
3/(x-2)-2/(x-1)=3(x-1)/(x-2)(x-1)-2(x-2)/(x-2)(x-1)=[3(x-1)-2(x-2)]/(x-2)(x-1)=(3x-3-2x+4)/(x-2)(x-1
=6x²-10x-3x+5=6x²-13x+5如果您认可我的答案,请点击下面的“选为满意回答”按钮,【供参考,\(^o^)/~】
-2x-(3x-3)=-2x-3x+3=3-5x
移项5x>15x>3
(x-3)²-x+3=(x-3)²-(x-3)=(x²-6x+9-1)(x-3)=(x²-6x+8)(x-3)=(x-4)(x-2)(x-3)(2a²
9/25×17/36+13/35×7/26=9*17/25*36+13*7/35*26=0.17+0.1=0.27X+15%X=170x+0.15x=1701.15x=170x=147.833X-60
(-x-2y)*(3x-y)=-3x^2-5xy+2y^2
(1)(2x-2)(3x+2)=6x²+4x-6x-4=6x²-2x-4(2)(x+5)²-(x-5)²=(x²+10x+25)-(x²-1
(x³+27)/(x+3)=(x³+3³)/(x+3)=[(x+3)(x²-3x+9)]/(x+3)=x²-3x+9很高兴为您解答,祝你学习进步!有不
5-(x-2)(2x-3)=5-(2x²-7x+6)=5-2x²+7x-6=-2x²+7x-1如果不懂,祝学习愉快!
原式=[x/(x-3)]-[5x/(x²-x-6)]=[x/(x-3)]-(5x)/[(x-3)(x+2)]=[x(x+2)]/[(x-3)(x+2)]-(5x)/[(x-3)(x+2)]=
=-(3X6.2)=-18.6再问:因为什么所以谁大于谁
2x^2-3x-52x-5×x12*(1)+(-5)*1=-3十字交叉法=(2x-5)(x+1)
原式=-18x^5
原式=(x+3)(x-2)(x+1)
X÷四分之九X=360x/(9/4)x=360化去x后:4/9≠360该题无解!