ashbrown2117 ashbrown2117
  • 03-10-2018
  • Mathematics
contestada

i need help solving x^2-2=7 by factoring

Respuesta :

MollieToliver MollieToliver
  • 03-10-2018

x^2-2=7

Subtract 7 from both sides

x^2-2-7=7-7

x^2-9=0

x^2-3^2=0

Using a^2-b^2=(a+b)(a-b)

Where a=x and b=3

(x-3)(x+3)

Answer Link

Otras preguntas

Which of the following transfers heat by electromagnetic waves? a. radiation b. conduction c. convection d. temperature
the land area that supplies water to a river system is called a divide. true or false
20% tip if the bill is 48.25
What do you think about fast growing salmon?
diana taurasi is a professional soccer player. true or false
what was the result of the Brown versus Board of Education Supreme Court decision
write 5 × 5 × 5 × 5 using exponents
Suppose you rent a limousine for a formal reception. The rental cost for the evening is $53.00. A tax of 6% will be added, and you want to tip the chauffeur 20%
find the balance on a deposit of $1,150 that earns 9% interest compounded annually for 2 years
Bolívar had hoped for a unified state in latin america, but