
Nevezetes azonosságok gyakorlása
Quiz by Hana Burian
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10 questions
Show answers
- Q1
(x+7)2=
Egyik sem
x2+7x+49
x2+14x+49
x2+49
60s - Q2
(a+10)2=
a+100
a2+100
a2+10a+100
a2+20a+100
60s - Q3
(y-5)2=
y2+25-5y
y2-10y+25
y2+25
y2-25
60s - Q4
(2x+8)2=
2x2+32x+64
2x2+16x+64
4x2+64
4x2+32x+64
60s - Q5
(x+y)(x-y)=
x2-2xy+y2
x2-y2
x2-xy-xy+y2
x2+y2
60s - Q6
(2b-6)2=
4b2+36
4b2-36
4b2-12b+36
4b2-24b+36
60s - Q7
(5a-3)(5a+3)=
25a2+9
25a2-9
25a2-30a+9
5a2-9
60s - Q8
(8x-7y)2=
64x2-49y2
64x2+49y2
8x2-56xy+7y2
64x2-112xy+49y2
60s - Q9
(3b-4c)(3b+4c)=
9b2+16c 2
9b2-24bc+16c 2
9b2-16c 2
9b2-12bc+16c 2
60s - Q10
(5d+3)2=
25d2+9
25d2+15d+9
5d2+30d+9
25d2+30d+9
60s