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

It is important to speak truth to power. Agree Disagree Explain why you voted the way you did.

in the declaration of independence, what did jefferson explain?

transfer or movement of thermal energy is called

What Que mean is Spanish # More than one definition either one works

please help... no links:)

what is |3| ????????????

How has population growth harmed the environment? Forests have expanded in size. Mining and drilling has increased. More wind turbines are being built. Solar pa

*Circle the letter A, B, C, or D to indicate the word whose underlined part is pronounced differently.Question 1. A. mentionB. actionC. congestionD. organizatio

A formal proof uses all of the following components except what? A. Geometry rules B. Theorems C. A set of examples D. Algebra rules

indicate sí if each activity you hear requires a ball or no if it does not.