Question

calcule os quadrados:

1° (x+1)²=?


2° (2x+10)²=?


3° (x+5)²=?


4° (x² + 2x²)²=?


5° (6+x)²=?



Me ajudem pfv ^^

Answer 1

Resposta:

Explicação passo-a-passo:

Bora lá...

1)

( + x + 1 )² = ( + x + 1 ) . ( + x + 1 )

Multiplica na ordem:

+ x . + x => + x²

+ x . + 1 => + x

+ 1 . + x => + x

+ 1 . + 1 => + 1

R: + x² + 2x + 1

2)

( + 2x + 10 )² = ( + 2x + 10 ) . ( + 2x + 10 )

Multiplica na ordem:

+ 2x . + 2x => + 4x²

+ 2x . + 10 => + 20x

+ 10 . + 2x => + 20x

+ 10 . + 10 => + 100

R: + 4x² + 40x + 100

3)

( + x + 5 )² = ( + x + 5 ) . ( + x + 5 )

Multiplica na ordem:

+ x . + x => + x²

+ x . + 5 => + 5x

+ 5 . + x => + 5x

+ 5 . + 5 => + 25

R: + x² + 10x + 25

4)

( + x² + 2x² )² = ( + x² + 2x² ) . ( + x² + 2x² )

Multiplica na ordem:

+ x² . + x² => $+x^{4}$

+ x² . + 2x² => $+2x^{4}$

+ 2x² . + x² => $+2x^{4}$

+ 2x² . + 2x² => $+4x^{4}$

R: $+9x^{4}$

5)

( + 6 + x )² = ( + 6 + x ) . ( + 6 + x )

Multiplica na ordem:

+ 6 . + 6 => + 36

+ 6 . + x => + 6x

+ x . + 6 => + 6x

+ x . + x => + x²

R: + 36 + 12x + x²

Answer 2

Oie, Td Bom?!

1.

$(x + 1) {}^{2}$

$x {}^{2} + 2x \: . \: 1 + 1 {}^{2}$

$x{}^{2} + 2x + 1$

2.

$(2x + 10) {}^{2}$

$(2x) {}^{2} + 2 \: . \: 2x \: . \: 10 + 10 {}^{2}$

$4 x{}^{2} + 40x + 100$

3.

$(x + 5) {}^{2}$

$x {}^{2} + 2x \: . \: 5 + 5 {}^{2}$

$x {}^{2} + 10x + 25$

4.

$(x {}^{2} + 2x {}^{2} ) {}^{2}$

$(3x {}^{2} ) {}^{2}$

$9x {}^{4}$

5.

$(6 + x) {}^{2}$

$36 + 12x + x {}^{2}$

$x {}^{2} + 12x + 36$

Att. Makaveli1996