( x + 6 ) ( x − 6 ) \left(x+6\right)\left(x-6\right) ( x + 6 ) ( x − 6 )

Formule de calcul prescurtat

Authored by Nicolae Popa

Mathematics

7th Grade

Used 78+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculati $\left(2x\ +\ 3\right)^2$

$2x^2+9$

$4x^2+12x+9$

$4x^2+9$

$4x^2+12x$

MULTIPLE CHOICE QUESTION

1 min • 1 pt

( x + y )²=

x²+2xy+y²

x²-2xy+y²

x²+y²

x²-y²

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

( a + 4 )( a – 4 ) =

a²+16

a²-4

a²-8a+16

a²-16

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

( 3 – x )²=

9+6x+x²

9-6x+x²

9-x²

9-3x+x²

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

( 2a – 3b )²=

4a²-12ab+9b²

4a²+12ab+9b²

4a²-9b²

4a²-6ab+9b²

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calcului $\left(\sqrt{3}+\sqrt{5}\right)\left(\sqrt{3}-\sqrt{5}\right)$ este un număr

natural

irațional

intreg

zecimal

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calcului $\left(3\sqrt{2}-\sqrt{7}\right)\left(3\sqrt{2}+\sqrt{7}\right)$ este

-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$\left(2a+3\right)^2=$

$2a^2+6a+9$

$4a^2+12a+9$

$4a^2+6a+9$

$2a^2+12a\ +6$

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Completeaza spatiul liber: $\left(4a^2-.....\right)^2=......-16a^2+4$

$4\ si\ 16a^4$

$2\ si\ 16a^4$

$\sqrt{2}si\ 16a^4$

$4\ si\ 4a^2\$

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Completeaza spatiul liber: $\left(.....-3x\right)^2=25-.....+9x^2$

$5si\ 30x$

$25\ si\ 6x$

$5x\ si\ 10x^2$

$25\ si\ 15x$

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Formule de calcul prescurtat

Calculati (2x + 3)2\left(2x\ +\ 3\right)^2(2x + 3)2

( x + y )2 =

( a + 4 )( a – 4 ) =

( 3 – x )2 =

( 2a – 3b )2 =

Rezultatul calcului (3+5)(3−5)\left(\sqrt{3}+\sqrt{5}\right)\left(\sqrt{3}-\sqrt{5}\right)(3​+5​)(3​−5​) este un număr

Rezultatul calcului (32−7)(32+7)\left(3\sqrt{2}-\sqrt{7}\right)\left(3\sqrt{2}+\sqrt{7}\right)(32​−7​)(32​+7​) este

(2a+3)2=\left(2a+3\right)^2=(2a+3)2=

Completeaza spatiul liber: (4a2−.....)2=......−16a2+4\left(4a^2-.....\right)^2=......-16a^2+4(4a2−.....)2=......−16a2+4

Completeaza spatiul liber: (.....−3x)2=25−.....+9x2\left(.....-3x\right)^2=25-.....+9x^2(.....−3x)2=25−.....+9x2

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Popular Resources on Wayground

Discover more resources for Mathematics

Calculati $\left(2x\ +\ 3\right)^2$

( x + y )²=

( 3 – x )²=

( 2a – 3b )²=

Rezultatul calcului $\left(\sqrt{3}+\sqrt{5}\right)\left(\sqrt{3}-\sqrt{5}\right)$ este un număr

Rezultatul calcului $\left(3\sqrt{2}-\sqrt{7}\right)\left(3\sqrt{2}+\sqrt{7}\right)$ este

$\left(2a+3\right)^2=$

Completeaza spatiul liber: $\left(4a^2-.....\right)^2=......-16a^2+4$

Completeaza spatiul liber: $\left(.....-3x\right)^2=25-.....+9x^2$