Bereken, herleid en rangschik naar dalende macht (ZRM toegestaan)
- \((14x^2-19)-(-20x^2-19x)\)
- \(4x(-6x^2+3x+1)\)
- \((-5x^2+5)(2x^2-8)\)
- \((16x^3-14x-1)+(-5x^3+14x^2+14)\)
- \(-4x^5(-8x^2-8x^3-1)\)
- \(x^2(-10x^5+7x^6+5)\)
- \((10x+3)+(18x-8)\)
- \((-x^2-x+2)(3x^2-3x+3)\)
- \(-x(-x^2+5x-2)\)
- \((-2x^2+5)(-3x^2-6)\)
- \((-7x^2-5x)(2x-6)\)
- \(-6x^5(2x^4-8x^3-4)\)
Bereken, herleid en rangschik naar dalende macht (ZRM toegestaan)
Verbetersleutel
- \((14x^2-19)-(-20x^2-19x)\\=14x^2-1920x^2+19x\\=34x^2+19x-19\)
- \(4x(-6x^2+3x+1)=-24x^3+12x^2+4x\)
- \((-5x^2+5)(2x^2-8)\\=-10x^4+40x^2+10x^2-40\\=-10x^4+50x^2-40\)
- \((16x^3-14x-1)+(-5x^3+14x^2+14)\\=16x^3-14x-1-5x^3+14x^2+14\\=11x^3+14x^2-14x+13\)
- \(-4x^5(-8x^2-8x^3-1)=32x^{8}+32x^{7}+4x^5\)
- \(x^2(-10x^5+7x^6+5)=7x^{8}-10x^{7}+5x^2\)
- \((10x+3)+(18x-8)\\=10x+3+18x-8\\=28x-5\)
- \((-x^2-x+2)(3x^2-3x+3)\\=-3x^4+3x^3-3x^2-3x^3+3x^2-3x+6x^2-6x+6\\=-3x^4+6x^2-9x+6\)
- \(-x(-x^2+5x-2)=x^3-5x^2+2x\)
- \((-2x^2+5)(-3x^2-6)\\=6x^4+12x^2-15x^2-30\\=6x^4-3x^2-30\)
- \((-7x^2-5x)(2x-6)\\=-14x^3+42x^2-10x^2+30x\\=-14x^3+32x^2+30x\)
- \(-6x^5(2x^4-8x^3-4)=-12x^{9}+48x^{8}+24x^5\)