WindsorLynne WindsorLynne

20-02-2017
Mathematics

contestada

Solve this equation using an algebraic method: (x + 4)( x - 4) = 9.

Respuesta :

SyntaxError SyntaxError

20-02-2017

Sure!

(x+4)(x-4)=9
x^2 +4x-4x - 16 =9
x^2 -16 = 9
x^2 =25
x = -5
x = 5

Answer Link

Otras preguntas

Swiss chemist Friedrich Miescher isolated DNA from fish sperm and put the pus of open wounds. True or False?

What caused the decline of the Aryans? They organized their life around the rules of the Vedas. They mixed with the original inhabitants of India. They

Why do you think government officials (and the public in general) were opposed to labor unions in the beginning? Why do you think things began to change during

what tends to exist in periodic table?

To what does the abbreviation AD refer?

Urgent help please!...

Roberto creates an animation titled “Flying through an Atom.” The animation makes it seem as if the viewer passes all the way through an atom, starting from one

PLZ HELP & EXPLAIN WHY! Which statement corrects the flaw in Gina's proof?A.) The coordinates of D and E were found using the midpoint formula. B.) Segments

Solve the equation using the distributive property and properties of equality. -5(a+3)=-55 need answer now :)

Acquiring, storing, and inventorying resources are part of which nims management characteristic?