03-06-2020
Mathematics

contestada

If 4x^2 – bx + 81 is a perfect square trinomial. Then the value of b is

Respuesta :

SvetkaChem SvetkaChem

03-06-2020

Answer:

b = 36

Step-by-step explanation:

perfect square: a² - 2ac + c²

4x²- bx + 81 = (2x)² - bx + 9² = (2x)² - 2*(2x)*(9) +9²= (2x)² - 36x +9²,

so b = 36

Answer Link

Otras preguntas

PLEASE HELP In designing a web to narrow your topic, which would appear in the center circle of the web? famous cyclists Tour de France strategy and tactics cy

Read the excerpt from a speech by Eleanor Roosevelt after the Japanese attacked Pearl Harbor. What was her purpose for delivering this speech? Good evening, lad

As First Consul, Napoleon presented the people of France with a new constitution. The constitution gave Napoleonpowers of government. The people approved the ne

What is the range of the function y = -x2 + 1?

hey can you please help me posted picture of question

If 72.0 grams of aluminum are reacted with 252 grams of hydrochloric acid, how many grams of aluminum chloride are produced by this reaction? 2al(s) + 6hcl(aq)

A large pizza has a diameter of 18 inches. How many square inches of pizza does the large pizza have?

Why did the United States attack taliban troops and al qaeda training bases in Afghanistan

what is the area of a classroom with a length of 30 feet and width of 15 feet

What activities might require you to provide your social security number? ABoarding an airplane. BBuying something with a credit card. CRenting a car. DStarting