(1)-1(1-2)^4+/-2-3/-5(2)[1+(1-1/2)*1/3]除以(-3^2+2)(3)(-1/6+3/4-1/12)*(-48)(4)-2^2+3*(-1)^3-(-4)*5化简下列各式(1)(x-3y)-(y-2x)(2)3x-[7x-(4x-3)-2x^2]/-2-3/是-2-3的绝对值
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/01 13:39:09
![(1)-1(1-2)^4+/-2-3/-5(2)[1+(1-1/2)*1/3]除以(-3^2+2)(3)(-1/6+3/4-1/12)*(-48)(4)-2^2+3*(-1)^3-(-4)*5化简下列各式(1)(x-3y)-(y-2x)(2)3x-[7x-(4x-3)-2x^2]/-2-3/是-2-3的绝对值](/uploads/image/z/10280753-17-3.jpg?t=%281%29-1%281-2%29%5E4%2B%2F-2-3%2F-5%282%29%5B1%2B%281-1%2F2%29%2A1%2F3%5D%E9%99%A4%E4%BB%A5%EF%BC%88-3%5E2%2B2%EF%BC%89%EF%BC%883%EF%BC%89%EF%BC%88-1%2F6%2B3%2F4-1%2F12%EF%BC%89%2A%EF%BC%88-48%EF%BC%89%EF%BC%884%EF%BC%89-2%5E2%2B3%2A%EF%BC%88-1%EF%BC%89%5E3-%EF%BC%88-4%EF%BC%89%2A5%E5%8C%96%E7%AE%80%E4%B8%8B%E5%88%97%E5%90%84%E5%BC%8F%EF%BC%881%EF%BC%89%EF%BC%88x-3y%29-%28y-2x%29%282%293x-%5B7x-%284x-3%29-2x%5E2%5D%2F-2-3%2F%E6%98%AF-2-3%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC)
(1)-1(1-2)^4+/-2-3/-5(2)[1+(1-1/2)*1/3]除以(-3^2+2)(3)(-1/6+3/4-1/12)*(-48)(4)-2^2+3*(-1)^3-(-4)*5化简下列各式(1)(x-3y)-(y-2x)(2)3x-[7x-(4x-3)-2x^2]/-2-3/是-2-3的绝对值
(1)-1(1-2)^4+/-2-3/-5
(2)[1+(1-1/2)*1/3]除以(-3^2+2)
(3)(-1/6+3/4-1/12)*(-48)
(4)-2^2+3*(-1)^3-(-4)*5
化简下列各式
(1)(x-3y)-(y-2x)
(2)3x-[7x-(4x-3)-2x^2]
/-2-3/是-2-3的绝对值
(1)-1(1-2)^4+/-2-3/-5(2)[1+(1-1/2)*1/3]除以(-3^2+2)(3)(-1/6+3/4-1/12)*(-48)(4)-2^2+3*(-1)^3-(-4)*5化简下列各式(1)(x-3y)-(y-2x)(2)3x-[7x-(4x-3)-2x^2]/-2-3/是-2-3的绝对值
(1)/-2-3/是什麼?
(2)[1+(1-1/2)*1/3]/(-3^2+2)
=[1+1/6]/(-9+2)
=(7/6)/(-7)
=-1/6
(3)(-1/6+3/4-1/12)*(-48)
=(-2+9-1)/12*(-48)
=6/12*(-48)
=-24
(4)-2^2+3*(-1)^3-(-4)*5
=-4-3+1024
=1017
(1)(x-3y)-(y-2x)
=x-3y-y+2x
=3x-4y
(2)3x-[7x-(4x-3)-2x^2]
=3x-[7x-4x+3-2x^2]
=3x-7x+4x-3+2x^2
=2x^2-3
(1)-1(1-2)^4+/-2-3/-5
= -1×(-1)×4+5-5
=1×4+5-5
=4
别的有人写过了,我就不写了