Bereken, herleid en rangschik naar dalende macht (ZRM toegestaan)
- \(-5x^5(7x^4-7x-3)\)
- \(-8x(-14x^7-7x^2)\)
- \(5x(-x^2+8x-2)\)
- \(-3x(-8x^2-10x+5)\)
- \(-5x^4(10x^3+x^6+3)\)
- \((-19x^2-10)-(-10x^2-13x)\)
- \((2x^2+4)(-2x^2-2)\)
- \(x(20x+16y-14)\)
- \((-15x^3-13x-2)+(-12x^3+10x^2-20)\)
- \((-9x^3-13x^2-8)-(13x^3-4-4x)-(-10x-6x^2+17x^3)\)
- \((x^3-x-4)+(-11x^3+14x^2-12)\)
- \(-6x^4(4x^2+3x^4-5)\)
Bereken, herleid en rangschik naar dalende macht (ZRM toegestaan)
Verbetersleutel
- \(-5x^5(7x^4-7x-3)=-35x^9+35x^6+15x^5\)
- \(-8x(-14x^7-7x^2)=112x^8+56x^3\)
- \(5x(-x^2+8x-2)=-5x^3+40x^2-10x\)
- \(-3x(-8x^2-10x+5)=24x^3+30x^2-15x\)
- \(-5x^4(10x^3+x^6+3)=-5x^{10}-50x^{7}-15x^4\)
- \((-19x^2-10)-(-10x^2-13x)\\=-19x^2-1010x^2+13x\\=-9x^2+13x-10\)
- \((2x^2+4)(-2x^2-2)\\=-4x^4-4x^2-8x^2-8\\=-4x^4-12x^2-8\)
- \(x(20x+16y-14)=20x^2+16xy-14x\)
- \((-15x^3-13x-2)+(-12x^3+10x^2-20)\\=-15x^3-13x-2-12x^3+10x^2-20\\=-27x^3+10x^2-13x-22\)
- \((-9x^3-13x^2-8)-(13x^3-4-4x)-(-10x-6x^2+17x^3)\\=-9x^3-13x^2-8-13x^3+4+4x+10x+6x^2-17x^3\\=-39x^3-7x^2+14x-4\)
- \((x^3-x-4)+(-11x^3+14x^2-12)\\=x^3-x-4-11x^3+14x^2-12\\=-10x^3+14x^2-x-16\)
- \(-6x^4(4x^2+3x^4-5)=-18x^{8}-24x^{6}+30x^4\)