Rosy176 Rosy176

15-01-2020
Mathematics

contestada

The expressions (x+4) is a factor of x2+kx-20 what is the value of k how do you know

Respuesta :

GrandNecro GrandNecro

15-01-2020

Answer:

k = -1

Step-by-step explanation:

You're given (x+4) as one of the factor for the equation

x² + kx - 20 = 0

what number does 4 multiply with to get -20? It's -5.

So

= (x+4)(x-5)

= x² + -1x - 20

= x² + kx - 20

Answer Link

Otras preguntas

I need the volume for 9,11,and 13

HELP I NEED AN ANSWER THIS IS FOR 40 POINTS Which expression represents the prime factorization of 243? A. 3 x 3 x 3 x 3 x 2 B. 3 x 3 x 3 x 3 x 3 C. 3 x 3 x

if a frog is not attracted to another frog's croak, and never breed. What type of isolation is this?

Following the collapse of the USSR, Cuba’s governmentswitched to Communism.rejected Communism.remained democratic.remained Communist.

How many languages and dialects are part of the common Indo European language family answers quick

Does anyone know this?

Which of the following is the conjugate of a complex number with −1 as the real part and 3i as the imaginary part? (6 points) –1 – 3i –1 + 3i –3i + 1

Select the correct spelling. reparable reparible

how does the statement establish leiningen's character?

What all is equivalent to 7:5