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Înmulțirea numerelor reale reprezentate prin litere - 1

Total questions: 10

Worksheet time: 19mins

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