- Kublar yig’indisi
a³+b³=(a+b)(a²-ab+b²) - Kublar ayirmasi
a³-b³=(a-b)(a²+ab+b²) - 421-misol
4)a³-27=a³-3³=(a-3)(a²+3a+9) - 425-misol
4)(4c-5d)(16c²+20cd+25d²)= (4c)³-(5d)³=16c³+25d³ Misollar yechish - 421-misol
- 422-misol
- 1) 27m³-8 2)64-125y³ 3)125+1/8b³
- 423-misol
- 1)8a³+1 2)1+27b³ 3)1/27a³+64b³
- 425-misol
- 1)(z+5)(z²-5z+25)
- 2)(y+2)(y²-2y+4)
- 3)(2x+3y)(4x²-6xy+9y²)
«Кластер» metodi
Qisqa ko’paytirish formulalari
=a²-2ab+b²
a³+b³=
a²-b²=
(a+b)²=
a³-b³=
(a-b)³=
(a-b)(a+b)=
(a+b)³=
“Muammoli vaziyat”metodi - 1-guruh:
- ? 50,3²-50,2²
- 2-guruh
- 30,4²-30,3²
- 3-guruh:
- 40,5²-40,4²
Teat javobi - 1-variant 2-variant
- 1.B 1.C
- 2.A 2.A
- 3.A 3.A
- 4.D 4.D
- 5.A 5.D
Anagraammani tuzing
r
v
d
t
а
a
k
“Kim chaqqon?” usuli Birhad va ko’phadni ko’paytiring.
(3a)∙(5b) =
|
(1/2 d²) (3/4 d)
|
(a+b) (a-b)=
|
(3a+2d) (a-3d) =
| Anagraammani tuzing
k
v
a
r
d
a
t
E’tiboringiz uchin rahmat!
Do'stlaringiz bilan baham: |