mikebramblett56 mikebramblett56

23-05-2016
Mathematics

contestada

What substitution should be used to rewrite 6(x + 5)2 + 5(x + 5) – 4 = 0 as a quadratic equation? u = (x + 5) u = (x – 5) u = (x + 5)2 u = (x – 5)2

Respuesta :

meerkat18 meerkat18

31-05-2016

6(x+5)² + 5(x+5)-4 = 0

(x+5)(x+5) = x(x+5)+5(x+5) = x² + 5x + 5x + 25 = x² + 10x + 25

6(x²+10x+25) + 5(x+5) - 4 = 0
6x² + 60x + 150 + 5x + 25 - 4 = 0
6x² + 60x + 5x + 150 + 25 - 4 = 0
6x² + 65x + 171 = 0

u = (x + 5)

Answer Link

28-10-2020

Answer:

A: u = (x + 5)

Edg 2020

Answer Link

Otras preguntas

What is the standard deviation of the data set? Round to the nearest tenth if needed. 2, 4, 7, 8, 9

need help asap plzz As light rays pass through a convex lens, they _____. (A)bend away from the middle (B)bend toward the middle (C)combine to form a single ray

What is the solution to the system shown here? x + y ≥ 5 x + y ≤ 5 no solution points in shaded area between two parallel lines points on a line points o

Which of these is an abiotic factor of an aquarium ecosystem? A. Algae growing on glass B. Gravel on the bottom of the aquarium C. Plants growing from the grav

what is the solution to the problem rounded to the correct number of significant figures? 12.77 + .8?

What is the scale factor of the triangle dilated from OPQ to OP’Q’ from center O? Explain and/or show your work Please help

Blowing carbon dioxide gas into a solution of magnesium oxide will form what product?

what is 5 times 7 minus 279 plus 3

Which force causes acceleration? • gravity • energy • friction • velocity

during the parental period A human being is called an