kitty<3

Necesitas escribirlos con paréntesis:

Por ejemplo,

(-1) - (-6) = 5

Es el tanto como

(-1) + 6 = 5

$${\frac{{\mathtt{10}}}{{\mathtt{7}}}} = {\mathtt{1.428\: \!571\: \!428\: \!571\: \!428\: \!6}}$$

$${\frac{{\mathtt{168}}}{{\mathtt{56}}}} = {\mathtt{3}}$$

No son equivalentes.

Usa los botones "2nd"  entonces "asin" en la calculadora de este sitio: http://web2.0calc.com/

Usa los botones "2nd" entonces  "atan" en esta calculadora: http://web2.0calc.com/

Escribe sqrt(884736, 15) en la calculadora.

$${\sqrt[{{\mathtt{{\mathtt{15}}}}}]{{\mathtt{884\,736}}}} = {\mathtt{2.491\: \!461\: \!879\: \!231\: \!034\: \!7}}$$

Multiply 12 by (3/5)

12/1 * 3/5

= (12*3) / (1*5)

= 36/5 or 7 and 1/5 or 7.2

You use the reciprocal of (3/5) because a number to a negative exponent is the same as 1 over the number to the positive form of the exponent.

So - (3/5) ^ -2 is the same as - (1/(3/5)) ^ 2.

So:

$${\mathtt{\,-\,}}\left({\left({\frac{{\mathtt{3}}}{{\mathtt{5}}}}\right)}^{-{\mathtt{2}}}\right) = {\mathtt{\,-\,}}{\frac{{\mathtt{25}}}{{\mathtt{9}}}} = -{\mathtt{2.777\: \!777\: \!777\: \!777\: \!777\: \!8}}$$

And $${\mathtt{\,-\,}}\left({\left({\frac{{\mathtt{5}}}{{\mathtt{3}}}}\right)}^{{\mathtt{2}}}\right) = {\mathtt{\,-\,}}{\frac{{\mathtt{25}}}{{\mathtt{9}}}} = -{\mathtt{2.777\: \!777\: \!777\: \!777\: \!777\: \!8}}$$

4p + 5 - 7p = -1

First combine the variable terms:

(4p - 7p) + 5 = -1

-3p + 5 = -1

Then subtract 5 from both sides to isolate the variable:

-3p = -6

Now divide both sides by -3 to get p:

p = -6/-3

p = 2

That depends on what the question is specifically.

It could be read as simply 2a³, or  (2a)³ , where it would simplify to 8a³.