01-10-2017
Mathematics

contestada

When the expression -5x^2+20x-17 is written in the form $a(x+d)^2+e$, where a, d, and e are constants, then what is the sum a+d+e?

PLEEEASE HELP

Respuesta :

mathmate mathmate

01-10-2017

Solution by completing the square.

-5x^2+20x-17
=-5(x^2-4x)-17
=(-5(x-2)^2+20) -17
=-5(x-2)^2+3
So a=-5, d=-2, e=+3
a+d+e=-5-2+3=-4

Answer Link

Otras preguntas

List the term of the expression. mn-2n+8

A 20-year-old, obese female has stopped menstruating (amenorrhea) and has gained 30 pounds during the past six months. her hair distribution has begun to acquir

with what arguments does Lady Reason defend the intelligence of women ?

what was the coercive acts?

What defense mechanism is often characterized by self blame and self punishment?

2.34 times 5.6 can anyone help me with thisath problem

Mami makes the connection between Negi's disobedience and the attack of the termites. What does this tell you about Mami? What does it tell you about Negi? Sant

How many hydrogen atoms are present in 75.0 g of H2O? 7.53 × 1024 atoms 2.51 × 1024 atoms 4.17 atoms 5.02 × 1024 atoms 75.0 atoms

Find the area of the figure

with what arguments does Lady Reason defend the intelligence of women ?