Descompunerea utilizând formule de calcul prescurtat Flashcards

1
Q

(A + B)^2 =

A

= A^2 + 2AB + B^2

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2
Q

A^2 + 2AB + B^2 =

A

= (A + B)^2

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3
Q

(A - B)^2 =

A

= A^2 - 2AB - B^2

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4
Q

A^2 - 2AB + B^2 =

A

= (A - B)^2

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5
Q

Ce metodă de descompunere este A^2 + 2AB + B^2 = (A + B)^2 sau A^2 - 2AB + B^2 = (A - B)^2?

A

Restrângere ca pătrat.

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6
Q

Ce presupune restrângerea ca pătrat?

A

A^2 + 2AB + B^2 = (A + B)^2 sau A^2 - 2AB + B^2 = (A - B)^2.

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7
Q

(A - B)(A + B) =

A

= A^2 - B^2

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8
Q

A^2 - B^2 =

A

= (A - B)(A + B)

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9
Q

Ce metodă de descompunere este A^2 - B^2 = (A - B)(A + B)

A

Diferența de pătrat.

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10
Q

Ce presupune diferența de pătrat?

A

A^2 - B^2 = (A - B)(A + B)

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