Polynomit – 30 kysymyksen testi

Valitse yksi vastaus jokaiseen kohtaan.

1. \(8x+6x\)

\(2x\) \(14x\) \(14x^2\) \(48x^2\)

2. \(8x-6x\)

\(14x\) \(2\) \(2x\) \(48x^2\)

3. \(3x\cdot4x\)

\(7x^2\) \(12x^2\) \(x^2\) \(12x\)

4. \(\frac{18x^3}{6x}\)

\(3x\) \(12x^2\) \(3x^3\) \(3x^2\)

5. \((3x+2)+(5x+4)\)

\(8x+8\) \(2x+6\) \(8x^2+6\) \(8x+6\)

6. \((4x+7)-(2x-5)\)

\(2x-12\) \(6x+2\) \(2x+12\) \(2x+2\)

7. \(3x(x+4)\)

\(12x^2\) \(7x^2\) \(3x^2+4\) \(3x^2+12x\)

8. \(-2x(3x-5)\)

\(6x^2+10x\) \(-6x+10\) \(-6x^2+10x\) \(-6x^2-10x\)

9. \((x+2)(x+5)\)

\(x^2+10x+7\) \(2x^2+10\) \(x^2+7\) \(x^2+7x+10\)

10. \((2x-3)(x+4)\)

\(2x^2+8x-3\) \(2x^2+11x-12\) \(2x^2+x-7\) \(2x^2+5x-12\)

11. \(6x\cdot7x-(6+x)(5-x)\)

\(41x^2-x-30\) \(42x^2-30\) \(43x^2+x-30\) \(43x^2-x+30\)

12. \((a+2)^2\)

\(a^2+2a+4\) \(a^2+4\) \(a^2+4a+4\) \(2a^2+4\)

13. \((a+1)^3\)

\(a^3+3a^2+3a+1\) \(a^3+1\) \(3a^3+1\) \(a^3+3a+1\)

14. \(3x-4,\ x=2\)

\(10\) \(2\) \(6\) \(-2\)

15. \(x^2+2x-1,\ x=-3\)

\(14\) \(2\) \(-16\) \(8\)

16. \(2x^2-3x+1,\ x=-2\)

\(9\) \(3\) \(15\) \(-1\)

17. \(\frac12x^2-3x+5,\ x=4\)

\(9\) \(5\) \(1\) \(-1\)

18. \(3x+4+2x-1\)

\(5x+3\) \(x+3\) \(6x\) \(5x+5\)

19. \(3x^2+2x-5+x^2-7x+2\)

\(4x^2-5x-3\) \(4x^2-5x+7\) \(3x^2-5x-3\) \(4x^2+9x-3\)

20. \(2x(x+1)-(x^2-4x+2)\)

\(x^2-2x-2\) \(x^2+6x-2\) \(3x^2+6x+2\) \(x^2+4x-2\)

21. \((x+3)(x-1)+2x^2\)

\(3x^2+3\) \(3x^2+2x-3\) \(3x^2-2x-3\) \(x^2+2x-3\)

22. \(\text{piiri: sivut }x\text{ ja }x+3\)

\(4x+6\) \(4x+3\) \(2x+3\) \(2x^2+6x\)

23. \(\text{ala: sivut }x+2\text{ ja }x+4\)

\(x^2+6x+8\) \(2x+6\) \(x^2+8\) \(x^2+6\)

24. \(\text{tilavuus: }x,\ x+2,\ 3\)

\(3x^2+6x\) \(3x^2+2x\) \(6x^2\) \(x^2+6\)

25. \((x+2)^3\)

\(3x^3+8\) \(x^3+8\) \(x^3+3x^2+6x+8\) \(x^3+6x^2+12x+8\)

26. \(5x^2-x+6-(2x^2+3x-4)\)

\(3x^2+2x+2\) \(3x^2-4x+2\) \(7x^2-4x+2\) \(3x^2-4x+10\)

27. \(4x^2(2x^3+x-3)\)

\(8x^5+4x^2-12x\) \(8x^5+4x^3-12x^2\) \(8x^6+4x^2-12\) \(6x^5+4x^3-12x^2\)

28. \((x-5)(x-2)\)

\(x^2+7x+10\) \(x^2-7x+10\) \(x^2-3x+10\) \(x^2-7x-10\)

29. \(2x(x+3)+(x+1)(x-2)\)

\(2x^2+5x-2\) \(3x^2+5x+2\) \(3x^2+5x-2\) \(3x^2+3x-2\)

30. \(3x(2x-1)-(x-4)(2x+3)+x^2\)

\(5x^2+2x+12\) \(5x^2+2x-12\) \(3x^2+2x+12\) \(5x^2-2x+12\)