ericmelegrito2 ericmelegrito2

15-12-2020
Mathematics

contestada

Which of the following is equivalent to (2a + 5b) (a - 3b)?

A) 2a² - 2ab - 15b²
B) 2a² - ab 15b²
C) 2a² + 2ab - 15b²
D) 2a² + 11ab - 15b²

Respuesta :

15-12-2020

Answer:

Step-by-step explanation:

use foil and you will have

=2a^2-6ab+5ab-15b^2

=2a^2-ab-15b^2

i think is B, maybe you forgot a minus between ab and 15b^2

Answer Link

Otras preguntas

Can you help me with this please

a mass of block 5 kg is acted upon by force of 20 n , at an angle of 60 degree. Find the normal force and acceleratio

Solve each radical expression.

Two pendulum have time periods t and 5t/4. they start shm at the same time from the mean position. after how many oscillations of the smaller pendulum they will

List four (4) ways in which a leisure and health professional can ensure clients participate in the planning of the leisure and recreation programs within a ser

A major difference between Watson's behaviorism and Freud's psychoanalysis is that A. behaviroism stresses the function of the mind, but psychoanalysis stresses

With the supporting approach, followers take full responsibility for getting the job done in the manner they see fit. a. true b. false

Calculate the change in potential energy of a body of mass 2kg that is lifted through a height of 10m above the ground level. If this 2kg mass is allowed to fal

What are the best ones here?

Which of the following statements about learning disabilities is true? a. Learning problems occurring as a result of intellectual disability may qualify as "lea