shaymas9umin8e shaymas9umin8e
  • 23-11-2016
  • Mathematics
contestada

What are the solutions to the equation below?
(x-4)(8x+64)=0
A) x=-4 and x=-8
B) x=-4 and x=48
C) x=4 and x=-8
D) x=4 and x=8

Respuesta :

Greenleafable
Greenleafable Greenleafable
  • 06-12-2016
So, as you can see, there are actually two equations here:
x- 4 = 0 and 8x+64=0
So, we need to solve both of them to get the solution.

x-4=0
x = 4

8x+64=0
8x=-64
x=-64/8
x=-8

So, the correct answer is C. x=4 and x=-8

Answer Link

Otras preguntas

which property is (3+5) times 6 = 3 + (5 times 6)
Which of the following is a sign of inflammation? a. bruising b. swelling c. numbness d. temperature decrease
write 6/10 as a terminating decimal
Which answer is closest to the true value of the expression: (9.1 x 10⁴)(1.1 x10^{-5})(log10^{-13})(1000) (a) 1.3  (b) 13000  (c) -13000  (d) 1.3 x 10^{-11} Can
which property is (3+5) times 6 = 3 + (5 times 6)
Three friends want to drive to the park. park A is 3.4 miles from Jamie's house. park B is 15/8 miles from Jamie's house. which park is closer to Jamies house?
Find k such that x² + (k + 1)x + k + 4 = 0
Which of the following best describes the difference between a mixture and a pure substance?
what is the factor of both x^2 - x - 6 and x^2 - 5x + 6 ? please explain .
Why did the English settle in the Chesapeake Bay area?