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Mathematics
8th
grade
Descompunerea în factori prin gruparea termenilor
15 questions
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- 1. Multiple Choice
x2-3x+2=
(x-2)(x-1)
(x+2)(x+1)
- 2. Multiple Choice
x2-xy+xz-yz=
(x+y)(x+z)
(x-y)(x+z)
- 3. Multiple Choice
x2+2xy+2yz+zx=
(x+2y)(x+z)
(x+2y)(x-z)
- 4. Multiple Choice
x2+5x+4=
(x+4)(x+1)
(x+4)(x-1)
- 5. Multiple Choice
x2-4x+3=
(x-3)(x+1)
(x-3)(x-1)
- 6. Multiple Choice
x2+6x+8=
(x+2)(x+4)
(x-2)(x+4)
- 7. Multiple Choice
a(x+y)-bx-by=
(x+y)(a-b)
(x-y)(a-b)
- 8. Multiple Choice
x2-9x+20
(x+4)(x+5)
(x-4)(x-5)
- 9. Multiple Choice
x2+8x-9
(x+9)(x-1)
(x-9)(x+1)
- 10. Multiple Choice
x2-5x-14
(x-7)(x+2)
(x+7)(x-2)
- 11. Multiple Choice
x2+11x+30
(x+5)(x+6)
(x+5)(x-6)
- 12. Multiple Choice
x2-10x+16
(x+2)(x+8)
(x-2)(x-8)
- 13. Multiple Choice
x2+x-2
(x-2)(x+1)
(x+2)(x-1)
- 14. Multiple Choice
x2+3x-10
(x+5)(x-2)
(x-5)(x+2);
- 15. Multiple Choice
x2+xy-a(x+y)=
(x+y)(x-a)
(x+y)(x+a)
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