¿Cuántas secuencias de tres letras pueden formarse haciendo uso de las letras: a, b, c, d, e, f. en las cuales aparecen la letra e, f o ambas “ e y f ”?

false

step-by-step explanation:

4y - 6 + 4y^2 - 9

before simplifying this contains 4 terms

after simplifying

4y -15 + 4y^2

it contains 3 terms

look a the sides they are perpendicular

the correct answer is 1.7

c.

step-by-step explanation:

simple you would first have to get   a negative number where as 1 to be multiplied by 24 and then you would have to multiply 6 time 4 and then repeat that process until you reach your term