Phillyd80
Phillyd80
04-08-2017
Mathematics
contestada
Solve the equation by factoring. z^2-6z-27=0
Respuesta :
Banabanana
Banabanana
04-08-2017
z² -
6z - 27 = 0
z² + 3z - 9z - 27 = 0
z(z+3) - 9(z+3) = 0
(z+3)(z-9) = 0
z + 3 = 0 or z - 9 = 0
z = -3 z = 9
Answer: z=-3 and z=9
Answer Link
VER TODAS LAS RESPUESTAS ( 91+ )
Otras preguntas
A triangle has sides of length 4xy, 7, and2x. Which expression represents the distance around, or perimeter, of the triangle? O 6z+y+7 O 6x + 4y +7 O4zy + 2x +7
A student graphed distance versus time for an object that moves 14m every 2 s. the speed of the object is
you spent $25 at the store. you bought a book for $8.50 and pencils for $.25 each. how many pencils did you buy?
A triangle has sides of length 4xy, 7, and2x. Which expression represents the distance around, or perimeter, of the triangle? O 6z+y+7 O 6x + 4y +7 O4zy + 2x +7
The sum of 2.236 and 7.555.. must be : A) Rational B) Irrational C) An integer D) A whole number
what is the principle of foreign policy of Nepal
Find the coordinates of the midpoint of the line segment with endpoints (6, -2) and (-3, -2). midpoint: (x, y) = ( )
Complete the sentence with a word that means the same as "rare"
The width, of a rectangle is 1/2 of its length. What are the sides of the rectangle if its perimeter is 63 in
Find the coordinates of the midpoint of the line segment with endpoints (6, -2) and (-3, -2). midpoint: (x, y) = ( )
