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LABURBIDEZKO FORMULAK
Hauen laguntzarekin: Iridoy

Aukeratu emaitza egokia

(Y+5)2 =

Y2+25Y+10

Y2+10Y+25
5Y2+10Y+25
10Y2-10Y-10

 :

 

(2X+3)2=

4X+6X2+3

4X2+12X+9

4X2+12X-9

4X2-12X-9


 

 

(ax2+ab2)2  =

a2x4+2a2x2b2+a2b4
a2x4+2a2x4b2+a4b2
2a2x4+2a2x2b2+4a2b4
ax2+2a2x2b2+ab4
Bete falta diren zenbakiak

a)

b)
c)
d)

(X +   )(X -    ) = X2+X-12

(X -    )(X +   ) = X2-2X-15

(X -    )(X +   )= X2-X-6

(X -    )(X +   ) = X2-3X-40 

Erabili honako formula

(a+b)(a-b) = a2-b2

 

a)
b)
c)
(
16X2-25Y2  =  (   X+   Y)(   X-    Y)
1-a2  =  (   +   )(    -   )

a2 - b4

4

9

)
=
(

a + b2       a - b2

)
(
)

Jarri emaitza egokia kasu bakoitzean

1.)
1.)
1.)
1.)
(a2+1)(4a-1)    =
(3ab-2)(x2+y2) =
(a+b)(a+x)      =
(x-2y)(a-2b)    =

a2+ax+ab+bx

?
ax-2bx-2ay+4by
?
4a3-1-a2+4a
?
3abx2-2y2-2x2+3aby2
?
1.)
1.)
1.)
1.)
(a2-1)(4a+1)    =
(3ab-2)(x2 _ y2) =
(2a+b)(a+2x)      =
(x+2y)(a-2b)    =

2a2+4ax+ab+2bx

?
ax-2bx+2ay-4by
?
4a3-1+a2 _4a
?
3abx2-2y2-2x2+3aby2
?

Bete ezazu

(   X2 +   )2
(   X -   Y)2
(   X -   )2
(   X4+   )2
=  9X2-48X +64
=  4X2-20XY+25Y2
=  16X8+72X4 +81
=  25X4+40X2 +16
Adierazi kasu bakoitzean emaitza ondo dagoen ala ez

(X+5)(X+2)= X2+7X+10

BAI
EZ

(m+5)(m-3) = m2+3m-10

BAI
EZ

(A+3)(A-1) = A2+4A+3

BAI
EZ

(2A+3)(2A-1) = 4A2+4A-2

BAI
EZ

(m+1)(m-2) = m2+3m-10

BAI
EZ

Bete ezazu

(   X2 +   )2
(   X -   Y)2
(   X -   )2
(   X4+   )2
=  16X2-16X +4
=  9X2-30XY+25Y2
=  25X8+90X4 +81
=  36X4+24X2 +4
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