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

Otras preguntas

what is a what is a lmpwhat is a what is a lmpwhat is a what is a lmp

Multiplying a number by 9 and subtracting 6 is 16 less than twice the number. Find the number.

Juan counts 26 bags of adult food. If Juan wanted to use an area model to multiply 26 by 32 to find the total number of pounds of dog food, would this be the co

select all the equations below in which a is directly proportion to b

8. Fill in the blank using suitable linker: I won't speak anything .......they stop arguing ****************

Who is the audience in the poem the road not taken

A country produces two goods, gadgets and widgets. Last year the country produced 15,000 gadgets and 12,000 widgets. This year it produced 17,500 gadgets and 12

Find the dimension of fractal with a scaling ratio of r=9 and a replacement ratio of N=11. Round your answer to the nearest hundredth. The dimension is blank

How many kilograms in 122.0 pounds

Can 10 9 8 lengths form a triangle