elizabethg6702 elizabethg6702

24-03-2020
Mathematics

contestada

12. What is the product of (a-5) and (a+3)?
A. A2-15
B. A2+2a-15
C. A2-2a-15
D. AS-2

Respuesta :

chococoda chococoda

24-03-2020

Answer:C

Step-by-step explanation:

(a-5)*(a+3）

a*a+a*3+(-5)*a+(-5)*3

a^2+3a-5a-15

a^2-2a-15

Answer Link

Officialalehpeter Officialalehpeter

24-03-2020

Answer:

C. a²-2a-15

Step-by-step explanation:

(a-5) (a+3)

Expand the bracket

a(a+3)-5(a+3)

a²+3a-5a-15

a²-2a-15

Answer Link

Otras preguntas

Which is the most appropriate unit of measurements to use to measure the thickness of a quarter? Elaborate. A.) meters B.) Kilometers C.) Centimeters D.) Millim

Would there be a problem or a major event in a horror story?

why might someone want to flee to afghanistan to seek a home in a new country

How can I work out 30% of (blank) is 60?

a⁴+b⁴=a²b² ,prove that a⁶+b⁶=0

why is it important to know your variables when conducting an investigatory problem ?

How and why did the antislavery movement become more radical over the period 1815 to 1860?

a) six pens and five pencils cost $2.50 while three pens and two pencils cost $1.15 . what will be the cost of a pen and 4 pencils . please help me

What is the algebraic expression for this story problem?A tank is filling with water from a natural spring well. Two days ago the water was 10 feet deep, and ye

the continuous muscular tube of the digestive system is called the