简化(2x-3)²+4x(5x-2)简化(4x-3)(3x²-5x+8)简化(15a^4b^3-20a^6b^5+10a^3b^2)/(-10a^2b^3)
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 22:53:38
![简化(2x-3)²+4x(5x-2)简化(4x-3)(3x²-5x+8)简化(15a^4b^3-20a^6b^5+10a^3b^2)/(-10a^2b^3)](/uploads/image/z/4480119-63-9.jpg?t=%E7%AE%80%E5%8C%96%EF%BC%882x-3%EF%BC%89%26%23178%3B%2B4x%EF%BC%885x-2%EF%BC%89%E7%AE%80%E5%8C%96%EF%BC%884x-3%EF%BC%89%EF%BC%883x%26%23178%3B-5x%2B8%EF%BC%89%E7%AE%80%E5%8C%96%EF%BC%8815a%5E4b%5E3-20a%5E6b%5E5%2B10a%5E3b%5E2%EF%BC%89%2F%EF%BC%88-10a%5E2b%5E3%EF%BC%89)
简化(2x-3)²+4x(5x-2)简化(4x-3)(3x²-5x+8)简化(15a^4b^3-20a^6b^5+10a^3b^2)/(-10a^2b^3)
简化(2x-3)²+4x(5x-2)
简化(4x-3)(3x²-5x+8)
简化(15a^4b^3-20a^6b^5+10a^3b^2)/(-10a^2b^3)
简化(2x-3)²+4x(5x-2)简化(4x-3)(3x²-5x+8)简化(15a^4b^3-20a^6b^5+10a^3b^2)/(-10a^2b^3)
解
原式
=4x²-12x+9+20x²-8x
=(4x²+20x²)+(-12x-8x)+9
=24x²-20x+9
原式
=4x(3x²-5x+8)-3(3x²-5x+8)
=12x³+(-20x²-9x²)+(32x+15x)-24
=12x³-29x²+47x-24
原式
=(5a²b²)(3a²b-4a^4b³+2a)/(-10a²b³)
=(3a²b-4a^4b³+2a)/(-2b)
=-3a²+2a^4b²-a/b
1 4x方+9-12x+20x方-8x=24x方-20x+9
2 12x的三次方-20x方+32x-9x方+15x-24=12x的三次方-9x方+12x-24
3 3a方b-4a的四次方b的三次方+2a\-2b