zSophia10 zSophia10

15-04-2018
Mathematics

contestada

The expression [(-7) ³ - (-7³)] - [(-7) ² + 7²] results in
a) -784
b) -686
c) -98
d) -49

Respuesta :

Supernova Supernova

15-04-2018

[(-7)(-7)(-7) + (-7)(-7)(-7)] - [(-7)(-7) + (7)(7)]
(-343 + -343) - (49 + 49)
-686 - 98 = -784
The answer is a) -784 :)

Answer Link

15-04-2018

[tex]BASIC \: \: ALGEBRA \\ \\ \\ Given \: \: expression \: - \\ ( {( - 7)}^{3} - ( { - 7)}^{3} ) - ( {( - 7)}^{2} + {(7)}^{2} ) \\ \\ = \: \: 0 \: - \: ( {( - 7)}^{2} + {(7)}^{2} ) \\ \\ = \: \: 0 \: - (49 + 49) \\ \\ = \: \: 0 - 98 \\ \\ \\ = \: \: - 98 \: \: \: \: \: \: \: \: \: \: Ans.[/tex]

Answer Link

Otras preguntas

Eleni is n years old. In thirteen years she will be twenty four years old-

If, 2=5 3=10 4=17 5=??

The perimeter of a parallelogram is 46in. If the length of one side is 14in., what is the length of a side adjacent to it?

If, 2=5 3=10 4=17 5=??

Eleni is n years old. In thirteen years she will be twenty four years old-

of the400 doctors who attended a conference, 240 practiced family medicine and 130 were from countries outside the United States. One-third of the family medici

Eleni is n years old. In thirteen years she will be twenty four years old-

Why is it necessary to use the same restriction enzyme to cut 2 pieces of DNA that are to be joined together?

Eleni is n years old. In thirteen years she will be twenty four years old-

How are radioactive probes useful in DNA fingerprinting