7th
-
8th
grade

Mathematics

68%

accuracy

plays

7 years

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1. Multiple Choice
2 minutes
1 pt
(x+6)(x–3) =
x²–3x–18
x²+3x–18
x²–3x–21
x²+3x–21
2. Multiple Choice
2 minutes
1 pt
(x+6)(x–4) =
3x²+2x–20
2x²+2x–20
x²+2x–28
x²+2x–24
3. Multiple Choice
2 minutes
1 pt
(x–8)(x–9) =
x²–17x+81
x²–17x+72
2x²–16x+72
x²–17x+63
4. Multiple Choice
2 minutes
1 pt
(x–8)(x+7) =
x²–x–49
x²–x–56
x²–x–55
x²–x–63
5. Multiple Choice
2 minutes
1 pt
(x+5)(x+3) =
x²+8x+12
x²+8x+15
x²+8x+18
2x²+9x+12
6. Multiple Choice
2 minutes
1 pt
(x+1)(x+3) =
x²+4x+3
3x²+4x+3
2x²+8x+3
2x²+4x+3
7. Multiple Choice
2 minutes
1 pt
(x–1)(x+5) =
2x²+4x–5
3x²+4x–5
2x²+8x–5
x²+4x–5
8. Multiple Choice
2 minutes
1 pt
(x–3)(x+5) =
x²+2x–20
3x²+2x–10
x²+2x–15
2x²+2x–10
9. Multiple Choice
2 minutes
1 pt
(x+1)(x+6) =
2x²+7x+6
2x²+14x+6
5x²+7x+6
x²+7x+6
10. Multiple Choice
30 seconds
1 pt
Pentru a primi 1 punct din oficiu, alegeți litera x.
a
b
c
x
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